677716164 has 18 divisors (see below), whose sum is σ = 1713115950. Its totient is φ = 225905376.

The previous prime is 677716157. The next prime is 677716199. The reversal of 677716164 is 461617776.

It can be written as a sum of positive squares in only one way, i.e., 528632064 + 149084100 = 22992^2 + 12210^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9412689 + ... + 9412760.

Almost surely, 2^677716164 is an apocalyptic number.

It is an amenable number.

677716164 is an abundant number, since it is smaller than the sum of its proper divisors (1035399786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

677716164 is a wasteful number, since it uses less digits than its factorization.

677716164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18825459 (or 18825454 counting only the distinct ones).

The product of its digits is 296352, while the sum is 45.

The square root of 677716164 is about 26032.9822340814. The cubic root of 677716164 is about 878.3803559215.

The spelling of 677716164 in words is "six hundred seventy-seven million, seven hundred sixteen thousand, one hundred sixty-four".