27147172 has 12 divisors (see below), whose sum is σ = 51162076. Its totient is φ = 12529440.

The previous prime is 27147151. The next prime is 27147173. The reversal of 27147172 is 27174172.

It can be written as a sum of positive squares in 2 ways, for example, as 1503076 + 25644096 = 1226^2 + 5064^2 .

It is not an unprimeable number, because it can be changed into a prime (27147173) 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, 260979 + ... + 261082.

Almost surely, 2^27147172 is an apocalyptic number.

It is an amenable number.

27147172 is a deficient number, since it is larger than the sum of its proper divisors (24014904).

27147172 is a wasteful number, since it uses less digits than its factorization.

27147172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522078 (or 522076 counting only the distinct ones).

The product of its digits is 5488, while the sum is 31.

The square root of 27147172 is about 5210.2948093174. The cubic root of 27147172 is about 300.5440940903.

Subtracting 27147172 from its reverse (27174172), we obtain a cube (27000 = 30³).

The spelling of 27147172 in words is "twenty-seven million, one hundred forty-seven thousand, one hundred seventy-two".