27172972 has 6 divisors (see below), whose sum is σ = 47552708. Its totient is φ = 13586484.

The previous prime is 27172933. The next prime is 27172973. The reversal of 27172972 is 27927172.

It is not an unprimeable number, because it can be changed into a prime (27172973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3396618 + ... + 3396625.

Almost surely, 2^27172972 is an apocalyptic number.

It is an amenable number.

27172972 is a deficient number, since it is larger than the sum of its proper divisors (20379736).

27172972 is a wasteful number, since it uses less digits than its factorization.

27172972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6793247 (or 6793245 counting only the distinct ones).

The product of its digits is 24696, while the sum is 37.

The square root of 27172972 is about 5212.7700889258. The cubic root of 27172972 is about 300.6392738327.

The spelling of 27172972 in words is "twenty-seven million, one hundred seventy-two thousand, nine hundred seventy-two".