76656713 has 4 divisors (see below), whose sum is σ = 87607680. Its totient is φ = 65705748.

The previous prime is 76656667. The next prime is 76656721. The reversal of 76656713 is 31765667.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31765667 = 4549 ⋅6983.

It is a cyclic number.

It is not a de Polignac number, because 76656713 - 2⁸ = 76656457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (76656113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5475473 + ... + 5475486.

It is an arithmetic number, because the mean of its divisors is an integer number (21901920).

Almost surely, 2^76656713 is an apocalyptic number.

It is an amenable number.

76656713 is a deficient number, since it is larger than the sum of its proper divisors (10950967).

76656713 is a wasteful number, since it uses less digits than its factorization.

76656713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10950966.

The product of its digits is 158760, while the sum is 41.

The square root of 76656713 is about 8755.3819448383. The cubic root of 76656713 is about 424.7989138689.

The spelling of 76656713 in words is "seventy-six million, six hundred fifty-six thousand, seven hundred thirteen".