672936872 has 16 divisors (see below), whose sum is σ = 1282442100. Its totient is φ = 330952320.

The previous prime is 672936863. The next prime is 672936883. The reversal of 672936872 is 278639276.

It can be written as a sum of positive squares in 2 ways, for example, as 667395556 + 5541316 = 25834^2 + 2354^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 672936872.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 688997 + ... + 689972.

Almost surely, 2^672936872 is an apocalyptic number.

It is an amenable number.

672936872 is a deficient number, since it is larger than the sum of its proper divisors (609505228).

672936872 is a wasteful number, since it uses less digits than its factorization.

672936872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379036 (or 1379032 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 50.

The square root of 672936872 is about 25941.0268108261. The cubic root of 672936872 is about 876.3106874587.

The spelling of 672936872 in words is "six hundred seventy-two million, nine hundred thirty-six thousand, eight hundred seventy-two".