77616808 has 16 divisors (see below), whose sum is σ = 150226560. Its totient is φ = 37556400.

The previous prime is 77616797. The next prime is 77616809. The reversal of 77616808 is 80861677.

It is not an unprimeable number, because it can be changed into a prime (77616809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156238 + ... + 156733.

It is an arithmetic number, because the mean of its divisors is an integer number (9389160).

Almost surely, 2^77616808 is an apocalyptic number.

It is an amenable number.

77616808 is a deficient number, since it is larger than the sum of its proper divisors (72609752).

77616808 is a wasteful number, since it uses less digits than its factorization.

77616808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313008 (or 313004 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 77616808 is about 8810.0401815202. The cubic root of 77616808 is about 426.5650403575.

The spelling of 77616808 in words is "seventy-seven million, six hundred sixteen thousand, eight hundred eight".