77456716 has 12 divisors (see below), whose sum is σ = 136078488. Its totient is φ = 38577152.

The previous prime is 77456707. The next prime is 77456737. The reversal of 77456716 is 61765477.

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, 36646 + ... + 38701.

It is an arithmetic number, because the mean of its divisors is an integer number (11339874).

Almost surely, 2^77456716 is an apocalyptic number.

It is an amenable number.

77456716 is a deficient number, since it is larger than the sum of its proper divisors (58621772).

77456716 is a wasteful number, since it uses less digits than its factorization.

77456716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75608 (or 75606 counting only the distinct ones).

The product of its digits is 246960, while the sum is 43.

The square root of 77456716 is about 8800.9497214789. The cubic root of 77456716 is about 426.2715615894.

The spelling of 77456716 in words is "seventy-seven million, four hundred fifty-six thousand, seven hundred sixteen".