27431164 has 12 divisors (see below), whose sum is σ = 48075664. Its totient is φ = 13695264.

The previous prime is 27431161. The next prime is 27431177. The reversal of 27431164 is 46113472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27431161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1809 + ... + 7624.

Almost surely, 2^27431164 is an apocalyptic number.

It is an amenable number.

27431164 is a deficient number, since it is larger than the sum of its proper divisors (20644500).

27431164 is a wasteful number, since it uses less digits than its factorization.

27431164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10164 (or 10162 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 27431164 is about 5237.4768734573. The cubic root of 27431164 is about 301.5884779844.

The spelling of 27431164 in words is "twenty-seven million, four hundred thirty-one thousand, one hundred sixty-four".