76864656 has 40 divisors (see below), whose sum is σ = 216620064. Its totient is φ = 23292160.

The previous prime is 76864621. The next prime is 76864661. The reversal of 76864656 is 65646867.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72261 + ... + 73316.

Almost surely, 2^76864656 is an apocalyptic number.

It is an amenable number.

76864656 is an abundant number, since it is smaller than the sum of its proper divisors (139755408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76864656 is a wasteful number, since it uses less digits than its factorization.

76864656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145599 (or 145593 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 48.

The square root of 76864656 is about 8767.2490554335. The cubic root of 76864656 is about 425.1826776392.

The spelling of 76864656 in words is "seventy-six million, eight hundred sixty-four thousand, six hundred fifty-six".