77496864 has 24 divisors (see below), whose sum is σ = 203429520. Its totient is φ = 25832256.

The previous prime is 77496841. The next prime is 77496893. The reversal of 77496864 is 46869477.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 403534 + ... + 403725.

It is an arithmetic number, because the mean of its divisors is an integer number (8476230).

Almost surely, 2^77496864 is an apocalyptic number.

It is an amenable number.

77496864 is an abundant number, since it is smaller than the sum of its proper divisors (125932656).

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

77496864 is a wasteful number, since it uses less digits than its factorization.

77496864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807272 (or 807264 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 51.

The square root of 77496864 is about 8803.2303161964. The cubic root of 77496864 is about 426.3451983916.

The spelling of 77496864 in words is "seventy-seven million, four hundred ninety-six thousand, eight hundred sixty-four".