27972324 has 48 divisors (see below), whose sum is σ = 75680640. Its totient is φ = 8917920.

The previous prime is 27972257. The next prime is 27972377. The reversal of 27972324 is 42327972.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3147 + ... + 8114.

It is an arithmetic number, because the mean of its divisors is an integer number (1576680).

Almost surely, 2^27972324 is an apocalyptic number.

It is an amenable number.

27972324 is an abundant number, since it is smaller than the sum of its proper divisors (47708316).

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

27972324 is a wasteful number, since it uses less digits than its factorization.

27972324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11297 (or 11289 counting only the distinct ones).

The product of its digits is 42336, while the sum is 36.

The square root of 27972324 is about 5288.8868394020. The cubic root of 27972324 is about 303.5588158292.

The spelling of 27972324 in words is "twenty-seven million, nine hundred seventy-two thousand, three hundred twenty-four".