672770688 has 32 divisors (see below), whose sum is σ = 1787048160. Its totient is φ = 224256768.

The previous prime is 672770671. The next prime is 672770713. The reversal of 672770688 is 886077276.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 672770688.

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, 875620 + ... + 876387.

It is an arithmetic number, because the mean of its divisors is an integer number (55845255).

Almost surely, 2^672770688 is an apocalyptic number.

It is an amenable number.

672770688 is an abundant number, since it is smaller than the sum of its proper divisors (1114277472).

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

672770688 is a wasteful number, since it uses less digits than its factorization.

672770688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752024 (or 1752012 counting only the distinct ones).

The product of its (nonzero) digits is 1580544, while the sum is 51.

The square root of 672770688 is about 25937.8235015970. The cubic root of 672770688 is about 876.2385455729.

The spelling of 672770688 in words is "six hundred seventy-two million, seven hundred seventy thousand, six hundred eighty-eight".