| Nominal | 20997 |
| Cardinal | twenty thousand nine hundred ninety-seven |
Cardinal twenty thousand nine hundred ninety-seven | |
| Ordinal | 20,997th |
| Number of digits | 5 |
| Sum of digits | 27 |
| Product of digits | 0 |
| Number parity | Odd |
| Prime factorization | 3 x 3 x 2333 |
| Prime factorization in exponent form | 32 x 2333 |
| Prime factors | 3, 2333 |
| Number of distinct prime factors ω(n) | 2 |
| Total number of prime factors Ω(n) | 3 |
| Sum of prime factors | 2336 |
| Product of prime factors | 6999 |
| Is 20997 a prime number? | No |
| Is 20997 a semiprime number? | No |
| Is 20997 a Chen prime number? | No |
| Is 20997 a Mersenne prime number? | No |
| Is 20997 a Catalan number? | No |
| Is 20997 a Fibonacci number? | No |
| Is 20997 a Idoneal number? | No |
| Square of 20997 (n2) | 440874009 |
| Cube of 20997 (n3) | 9257031566973 |
| Square root of 20997 | 144.9034161088 |
| Natural Logarithm (ln) of 20997 | 9.9521348493577 |
| Decimal Logarithm (log) of 20997 | 4.3221572482331 |
| Sine of 20997 | -0.98633614993212 |
| Cosecant of 20997 | -1.0138531372584 |
| Cosine of 20997 | 0.16474525588644 |
| Secant of 20997 | 6.0699775214729 |
| Tangent of 20997 | -5.987038258704 |
| Cotangent of 20997 | -0.1670274945289 |
| The spelling of 20997 in words is "twenty thousand nine hundred ninety-seven", meaning that: |
| 20997 is not an aban number (as it contains the letter a) |
| 20997 is not an eban number (as it contains the letter e) |
| 20997 is not an iban number (as it contains the letter i) |
| 20997 is not an oban number (as it contains the letter o) |
| 20997 is not a tban number (as it contains the letter t) |
| 20997 is not an uban number (as it contains the letter u) |
| Bengali numerals | ২০৯৯৭ |
| Eastern Arabic numerals | ٢٠٬٩٩٧ |
| Hieroglyphs numeralsused in Ancient Egypt | 𓂭𓂭𓍪𓎎𓐀 |
| Khmer numerals | ២០៩៩៧ |
| Japanese numerals | 二万九百九十七 |
| Roman numerals | n/a |
| Thai numerals | ๒๐๙๙๗ |
| Arabic | عشرون ألف و تسعة مائة و سبعة و تسعون |
| Croatian | dvadeset tisuća devetsto devedeset i sedam |
| Czech | dvacet tisíc devět set devadesát sedm |
| Danish | tyve tusinde ni hundrede syv og halvfems |
| Dutch | twintigduizend negenhonderdzevenennegentig |
| Estonian | akpe blaeve alafa asieke blaasieke vɔ adre |
| Faroese | tjúgo tusin og níggjuhundraðognítisjey |
| Filipino | dalawáng pû libó’t siyám na daán at siyám na pû’t pitó |
| Finnish | kaksikymmentätuhattayhdeksänsataayhdeksänkymmentäseitsemän |
| French | vingt mille neuf cent quatre-vingt-dix-sept |
| Greek | είκοσι χίλιάδες εννιακόσια εννενήντα επτά |
| German | zwanzigtausendneunhundertsiebenundneunzig |
| Hebrew | עשרים אלף תשע מאות תשעים ושבע |
| Hindi | बीस हज़ार नौ सौ सत्तानबे |
| Hungarian | húszezerkilencszázkilencvenhét |
| Icelandic | tuttugu þúsund og níuhundrað og níutíu og sjó |
| Indonesian | dua puluh ribu sembilan ratus sembilan puluh tujuh |
| Italian | ventimilanovecentonovantasette |
| Japanese | 二万九百九十七 |
| Korean | 이만 구백구십칠 |
| Latvian | divdesmit tūkstoši deviņsimt deviņdesmit septiņi |
| Lithuanian | dvidešimt tūkstančių devyni šimtai devyniasdešimt septyni |
| Norwegian | tjue tusen ni hundre og nittisju |
| Persian | بیست هزار و نهصد و نود و هفت |
| Polish | dwadzieścia tysięcy dziewięćset dziewięćdziesiąt siedem |
| Portuguese | vinte mil novecentos e noventa e sete |
| Romanian | douăzeci mii nouă sute nouăzeci şi şapte |
| Russian | двадцать тысяч девятьсот девяносто семь |
| Serbian | двадесет хиљада деветсто деведесет и седам |
| Slovak | dvadsať tisíc deväťsto deväťdesiatsedem |
| Slovene | dvaset tisuću devetsto devetdeset sedem |
| Spanish | veinte mil novecientos noventa y siete |
| Swahili | elfu ishirini, mia tisa na tisini na saba |
| Swedish | tjugotusenniohundranittiosju |
| Thai | สองหมื่นเก้าร้อยเก้าสิบเจ็ด |
| Turkish | yirmi bin dokuz yüz doksan yedi |
| Ukrainian | двадцять тисяч девʼятсот девʼяносто сім |
| Vietnamese | hai mươi nghìn chín trăm chín mươi bảy |
| Number 20997 reversed | 79902 | |
| Unicode Character | U+5205 | 刅 |
| Unix Timestamp | Thu, 01 Jan 1970 05:49:57 +0000 | |