76631 has 2 divisors, whose sum is σ = 76632. Its totient is φ = 76630.

The previous prime is 76607. The next prime is 76649. The reversal of 76631 is 13667.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76631 is a prime.

It is a super-2 number, since 2×76631² = 11744620322, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 76597 and 76606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38315 + 38316.

It is an arithmetic number, because the mean of its divisors is an integer number (38316).

2⁷⁶⁶³¹ is an apocalyptic number.

76631 is a deficient number, since it is larger than the sum of its proper divisors (1).

76631 is an equidigital number, since it uses as much as digits as its factorization.

76631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 756, while the sum is 23.

The square root of 76631 is about 276.8230481734. The cubic root of 76631 is about 42.4751411719.

It can be divided in two parts, 766 and 31, that added together give a palindrome (797).

The spelling of 76631 in words is "seventy-six thousand, six hundred thirty-one".