77656364 has 12 divisors (see below), whose sum is σ = 140282688. Its totient is φ = 37575600.

The previous prime is 77656351. The next prime is 77656387. The reversal of 77656364 is 46365677.

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, 313007 + ... + 313254.

It is an arithmetic number, because the mean of its divisors is an integer number (11690224).

Almost surely, 2^77656364 is an apocalyptic number.

It is an amenable number.

77656364 is a deficient number, since it is larger than the sum of its proper divisors (62626324).

77656364 is a wasteful number, since it uses less digits than its factorization.

77656364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626296 (or 626294 counting only the distinct ones).

The product of its digits is 635040, while the sum is 44.

The square root of 77656364 is about 8812.2848342527. The cubic root of 77656364 is about 426.6374917660.

The spelling of 77656364 in words is "seventy-seven million, six hundred fifty-six thousand, three hundred sixty-four".