72972174 has 16 divisors (see below), whose sum is σ = 159212160. Its totient is φ = 22112760.

The previous prime is 72972157. The next prime is 72972209. The reversal of 72972174 is 47127927.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552754 + ... + 552885.

It is an arithmetic number, because the mean of its divisors is an integer number (9950760).

Almost surely, 2^72972174 is an apocalyptic number.

72972174 is an abundant number, since it is smaller than the sum of its proper divisors (86239986).

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

72972174 is a wasteful number, since it uses less digits than its factorization.

72972174 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105655.

The product of its digits is 49392, while the sum is 39.

The square root of 72972174 is about 8542.3751966300. The cubic root of 72972174 is about 417.8808104729.

The spelling of 72972174 in words is "seventy-two million, nine hundred seventy-two thousand, one hundred seventy-four".