27531172 has 12 divisors (see below), whose sum is σ = 49354956. Its totient is φ = 13429760.

The previous prime is 27531151. The next prime is 27531181. The reversal of 27531172 is 27113572.

It can be written as a sum of positive squares in 2 ways, for example, as 3481956 + 24049216 = 1866^2 + 4904^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27531172.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83773 + ... + 84100.

It is an arithmetic number, because the mean of its divisors is an integer number (4112913).

Almost surely, 2^27531172 is an apocalyptic number.

It is an amenable number.

27531172 is a deficient number, since it is larger than the sum of its proper divisors (21823784).

27531172 is a wasteful number, since it uses less digits than its factorization.

27531172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167918 (or 167916 counting only the distinct ones).

The product of its digits is 2940, while the sum is 28.

The square root of 27531172 is about 5247.0155326624. The cubic root of 27531172 is about 301.9545419349.

The spelling of 27531172 in words is "twenty-seven million, five hundred thirty-one thousand, one hundred seventy-two".