76708631 has 2 divisors, whose sum is σ = 76708632. Its totient is φ = 76708630.

The previous prime is 76708609. The next prime is 76708633. The reversal of 76708631 is 13680767.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76708631 - 2²² = 72514327 is a prime.

It is a super-2 number, since 2×76708631² = 11768428139788322, which contains 22 as substring.

Together with 76708633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76708633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38354315 + 38354316.

It is an arithmetic number, because the mean of its divisors is an integer number (38354316).

Almost surely, 2^76708631 is an apocalyptic number.

76708631 is a deficient number, since it is larger than the sum of its proper divisors (1).

76708631 is an equidigital number, since it uses as much as digits as its factorization.

76708631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 76708631 is about 8758.3463621850. The cubic root of 76708631 is about 424.8947947207.

The spelling of 76708631 in words is "seventy-six million, seven hundred eight thousand, six hundred thirty-one".