Names of 7
| Nominal | 7 |
| Cardinal | seven |
| Ordinal | 7th |
| This number as US currency | seven dollars |
| Is 7 an odd number? | 7 is an odd number |
| Is 7 an even number? | 7 is NOT an even number |
| Is 7 a palindrome? | 7 is a palindrome number |
| Is 7 a triangle number? | 7 is NOT a triangle number |
| Factorial (n!) of number 7! | 5040 |
7 in other Bases
| Base 2 (Binary) | 1112 |
| Base 3 (Ternary) | 213 |
| Base 4 (Quaternary) | 134 |
| Base 5 (Quinary) | 125 |
| Base 6 (Senary) | 116 |
| Base 8 (Octal) | 78 |
| Base 12 (Duodecimal) | 712 |
| Base 16 (Hexadecimal) | 716 |
| Base 20 (Vigesimal) | 720 |
Primes and Factors tests for 7
| Is 7 a Prime Number? | 7 is a prime |
| Is 7 a perfect number? | 7 is NOT a perfect number |
| Is 7 a Mersenne Prime? | 7 is a Mersenne prime |
| Is 7 a Fermat Prime? | 7 is NOT a Fermat prime |
| Is 7 a Fibonacci Prime? | 7 is NOT a Fibonacci prime |
| Is 7 a Partition Prime? | 7 is a Partition prime |
| Is 7 a Pell Prime? | 7 is NOT a Pell prime |
| Prime Factors | Prime factors of 7 |
Sponsored
7 in other Numerals
| 7 in Roman Numeral | VII |
| 7 in Chinese Numeral | 柒 |
| 7 in Egyptian Numeral | 𓐀 |
| 7 in Babylonian Numeral |  |
Roots and stuff for 7
| Is 7 a square number? | 7 is NOT a square number |
| Is 7 a cube number? | 7 is NOT a cube number |
| Square root of the number 7 | 2.6457513110646 |
| Cube root of the number 7 | 1.9129311827724 |
Recreational math for 7
| Number 7 reversed | 7 |
| Sum of the digits | 7 |
| No of digits | 1 |