7942724 has 12 divisors (see below), whose sum is σ = 13919724. Its totient is φ = 3965664.

The previous prime is 7942691. The next prime is 7942729. The reversal of 7942724 is 4272497.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 280900 + 7661824 = 530^2 + 2768^2 .

It is not an unprimeable number, because it can be changed into a prime (7942729) 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, 4034 + ... + 5670.

It is an arithmetic number, because the mean of its divisors is an integer number (1159977).

Almost surely, 2^7942724 is an apocalyptic number.

It is an amenable number.

7942724 is a deficient number, since it is larger than the sum of its proper divisors (5977000).

7942724 is a wasteful number, since it uses less digits than its factorization.

7942724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854 (or 2852 counting only the distinct ones).

The product of its digits is 28224, while the sum is 35.

The square root of 7942724 is about 2818.2838749849. The cubic root of 7942724 is about 199.5215563711.

The spelling of 7942724 in words is "seven million, nine hundred forty-two thousand, seven hundred twenty-four".