8572172 has 12 divisors (see below), whose sum is σ = 17144400. Its totient is φ = 3673776.

The previous prime is 8572163. The next prime is 8572217. The reversal of 8572172 is 2712758.

8572172 is an admirable number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

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, 153047 + ... + 153102.

It is an arithmetic number, because the mean of its divisors is an integer number (1428700).

Almost surely, 2^8572172 is an apocalyptic number.

It is an amenable number.

8572172 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8572172 is a wasteful number, since it uses less digits than its factorization.

8572172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306160 (or 306158 counting only the distinct ones).

The product of its digits is 7840, while the sum is 32.

The square root of 8572172 is about 2927.8271806922. The cubic root of 8572172 is about 204.6587381882.

The spelling of 8572172 in words is "eight million, five hundred seventy-two thousand, one hundred seventy-two".