7972724 has 12 divisors (see below), whose sum is σ = 13976004. Its totient is φ = 3979584.

The previous prime is 7972693. The next prime is 7972733. The reversal of 7972724 is 4272797.

It can be written as a sum of positive squares in 2 ways, for example, as 2999824 + 4972900 = 1732^2 + 2230^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712 + ... + 4344.

It is an arithmetic number, because the mean of its divisors is an integer number (1164667).

Almost surely, 2^7972724 is an apocalyptic number.

It is an amenable number.

7972724 is a deficient number, since it is larger than the sum of its proper divisors (6003280).

7972724 is a wasteful number, since it uses less digits than its factorization.

7972724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3394 (or 3392 counting only the distinct ones).

The product of its digits is 49392, while the sum is 38.

The square root of 7972724 is about 2823.6012466352. The cubic root of 7972724 is about 199.7724411831.

The spelling of 7972724 in words is "seven million, nine hundred seventy-two thousand, seven hundred twenty-four".