77718976 has 28 divisors (see below), whose sum is σ = 154899360. Its totient is φ = 38689280.

The previous prime is 77718937. The next prime is 77718997. The reversal of 77718976 is 67981777.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 12756 + ... + 17836.

It is an arithmetic number, because the mean of its divisors is an integer number (5532120).

Almost surely, 2^77718976 is an apocalyptic number.

It is an amenable number.

77718976 is a deficient number, since it is larger than the sum of its proper divisors (77180384).

77718976 is a wasteful number, since it uses less digits than its factorization.

77718976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5332 (or 5322 counting only the distinct ones).

The product of its digits is 1037232, while the sum is 52.

The square root of 77718976 is about 8815.8366591039. The cubic root of 77718976 is about 426.7521226400.

The spelling of 77718976 in words is "seventy-seven million, seven hundred eighteen thousand, nine hundred seventy-six".