77313456 has 60 divisors (see below), whose sum is σ = 236045160. Its totient is φ = 23427840.

The previous prime is 77313437. The next prime is 77313479. The reversal of 77313456 is 65431377.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 77313456.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22821 + ... + 25988.

It is an arithmetic number, because the mean of its divisors is an integer number (3934086).

Almost surely, 2^77313456 is an apocalyptic number.

It is an amenable number.

77313456 is an abundant number, since it is smaller than the sum of its proper divisors (158731704).

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

77313456 is a wasteful number, since it uses less digits than its factorization.

77313456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48834 (or 48825 counting only the distinct ones).

The product of its digits is 52920, while the sum is 36.

The square root of 77313456 is about 8792.8070603192. The cubic root of 77313456 is about 426.0085960046.

The spelling of 77313456 in words is "seventy-seven million, three hundred thirteen thousand, four hundred fifty-six".