172572896 has 24 divisors (see below), whose sum is σ = 357635880. Its totient is φ = 81744768.

The previous prime is 172572871. The next prime is 172572901. The reversal of 172572896 is 698275271.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 172572896.

It is a congruent number.

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, 141311 + ... + 142526.

It is an arithmetic number, because the mean of its divisors is an integer number (14901495).

Almost surely, 2^172572896 is an apocalyptic number.

172572896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

172572896 is an abundant number, since it is smaller than the sum of its proper divisors (185062984).

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

172572896 is a wasteful number, since it uses less digits than its factorization.

172572896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283866 (or 283858 counting only the distinct ones).

The product of its digits is 423360, while the sum is 47.

The square root of 172572896 is about 13136.7003467385. The cubic root of 172572896 is about 556.7465430138.

The spelling of 172572896 in words is "one hundred seventy-two million, five hundred seventy-two thousand, eight hundred ninety-six".