172900472 has 32 divisors (see below), whose sum is σ = 344509200. Its totient is φ = 81068544.

The previous prime is 172900411. The next prime is 172900493. The reversal of 172900472 is 274009271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37679 + ... + 42017.

Almost surely, 2^172900472 is an apocalyptic number.

It is an amenable number.

172900472 is a deficient number, since it is larger than the sum of its proper divisors (171608728).

172900472 is a wasteful number, since it uses less digits than its factorization.

172900472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655 (or 4651 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 172900472 is about 13149.1624067847. The cubic root of 172900472 is about 557.0985904406.

The spelling of 172900472 in words is "one hundred seventy-two million, nine hundred thousand, four hundred seventy-two".