77916316 has 6 divisors (see below), whose sum is σ = 136353560. Its totient is φ = 38958156.

The previous prime is 77916313. The next prime is 77916329. The reversal of 77916316 is 61361977.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77916313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9739536 + ... + 9739543.

Almost surely, 2^77916316 is an apocalyptic number.

It is an amenable number.

77916316 is a deficient number, since it is larger than the sum of its proper divisors (58437244).

77916316 is a wasteful number, since it uses less digits than its factorization.

77916316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19479083 (or 19479081 counting only the distinct ones).

The product of its digits is 47628, while the sum is 40.

The square root of 77916316 is about 8827.0219213504. The cubic root of 77916316 is about 427.1130129925.

The spelling of 77916316 in words is "seventy-seven million, nine hundred sixteen thousand, three hundred sixteen".