Names of 84
| Nominal | 84 |
| Cardinal | eighty-four |
| Ordinal | 84th |
| This number as US currency | eighty-four dollars |
| Is 84 an odd number? | 84 is NOT an odd number |
| Is 84 an even number? | 84 is an even number |
| Is 84 a palindrome? | 84 is NOT a palindrome number |
| Is 84 a triangle number? | 84 is NOT a triangle number |
84 in other Bases
| Base 2 (Binary) | 10101002 |
| Base 3 (Ternary) | 100103 |
| Base 4 (Quaternary) | 11104 |
| Base 5 (Quinary) | 3145 |
| Base 6 (Senary) | 2206 |
| Base 8 (Octal) | 1248 |
| Base 12 (Duodecimal) | 7012 |
| Base 16 (Hexadecimal) | 5416 |
| Base 20 (Vigesimal) | 4420 |
Primes and Factors tests for 84
| Is 84 a Prime Number? | 84 is NOT a prime |
| Is 84 a perfect number? | 84 is NOT a perfect number |
| Is 84 a Mersenne Prime? | 84 is NOT a Mersenne prime |
| Is 84 a Fermat Prime? | 84 is NOT a Fermat prime |
| Is 84 a Fibonacci Prime? | 84 is NOT a Fibonacci prime |
| Is 84 a Partition Prime? | 84 is NOT a Partition prime |
| Is 84 a Pell Prime? | 84 is NOT a Pell prime |
| Prime Factors | Prime factors of 84 |
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84 in other Numerals
| 84 in Roman Numeral | LXXXIV |
| 84 in Chinese Numeral | 捌拾肆 |
| 84 in Egyptian Numeral | 𓎍𓏽 |
| 84 in Babylonian Numeral |   |
Roots and stuff for 84
| Is 84 a square number? | 84 is NOT a square number |
| Is 84 a cube number? | 84 is NOT a cube number |
| Square root of the number 84 | 9.1651513899117 |
| Cube root of the number 84 | 4.3795191398879 |
Recreational math for 84
| Number 84 reversed | 48 |
| Sum of the digits | 12 |
| No of digits | 2 |