677672964 has 18 divisors (see below), whose sum is σ = 1713006750. Its totient is φ = 225890976.

The previous prime is 677672959. The next prime is 677672977. The reversal of 677672964 is 469276776.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 625400064 + 52272900 = 25008^2 + 7230^2 .

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

It is a super-2 number, since 2×677672964² = 918481292273090592, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 677672964.

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, 9412089 + ... + 9412160.

Almost surely, 2^677672964 is an apocalyptic number.

It is an amenable number.

677672964 is an abundant number, since it is smaller than the sum of its proper divisors (1035333786).

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

677672964 is a wasteful number, since it uses less digits than its factorization.

677672964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18824259 (or 18824254 counting only the distinct ones).

The product of its digits is 5334336, while the sum is 54.

The square root of 677672964 is about 26032.1525041630. The cubic root of 677672964 is about 878.3616918456.

The spelling of 677672964 in words is "six hundred seventy-seven million, six hundred seventy-two thousand, nine hundred sixty-four".