172372672 has 28 divisors (see below), whose sum is σ = 356926896. Its totient is φ = 82438400.

The previous prime is 172372661. The next prime is 172372699. The reversal of 172372672 is 276273271.

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, 57079 + ... + 60022.

Almost surely, 2^172372672 is an apocalyptic number.

It is an amenable number.

172372672 is an abundant number, since it is smaller than the sum of its proper divisors (184554224).

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

172372672 is a wasteful number, since it uses less digits than its factorization.

172372672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117136 (or 117126 counting only the distinct ones).

The product of its digits is 49392, while the sum is 37.

The square root of 172372672 is about 13129.0773476281. The cubic root of 172372672 is about 556.5311419437.

The spelling of 172372672 in words is "one hundred seventy-two million, three hundred seventy-two thousand, six hundred seventy-two".