672985164 has 12 divisors (see below), whose sum is σ = 1570298744. Its totient is φ = 224328384.

The previous prime is 672985147. The next prime is 672985207. The reversal of 672985164 is 461589276.

It is a tau number, because it is divible by the number of its divisors (12).

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, 28041037 + ... + 28041060.

Almost surely, 2^672985164 is an apocalyptic number.

It is an amenable number.

672985164 is an abundant number, since it is smaller than the sum of its proper divisors (897313580).

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

672985164 is a wasteful number, since it uses less digits than its factorization.

672985164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56082104 (or 56082102 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 672985164 is about 25941.9575976833. The cubic root of 672985164 is about 876.3316491988.

The spelling of 672985164 in words is "six hundred seventy-two million, nine hundred eighty-five thousand, one hundred sixty-four".