172470028 has 6 divisors (see below), whose sum is σ = 301822556. Its totient is φ = 86235012.

The previous prime is 172470007. The next prime is 172470041. The reversal of 172470028 is 820074271.

172470028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21558750 + ... + 21558757.

Almost surely, 2^172470028 is an apocalyptic number.

It is an amenable number.

172470028 is a deficient number, since it is larger than the sum of its proper divisors (129352528).

172470028 is a wasteful number, since it uses less digits than its factorization.

172470028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43117511 (or 43117509 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 172470028 is about 13132.7844724567. The cubic root of 172470028 is about 556.6358983954.

The spelling of 172470028 in words is "one hundred seventy-two million, four hundred seventy thousand, twenty-eight".