7968728 has 16 divisors (see below), whose sum is σ = 14982000. Its totient is φ = 3973536.

The previous prime is 7968703. The next prime is 7968743. The reversal of 7968728 is 8278697.

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, 2378 + ... + 4646.

It is an arithmetic number, because the mean of its divisors is an integer number (936375).

Almost surely, 2^7968728 is an apocalyptic number.

It is an amenable number.

7968728 is a deficient number, since it is larger than the sum of its proper divisors (7013272).

7968728 is a wasteful number, since it uses less digits than its factorization.

7968728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2714 (or 2710 counting only the distinct ones).

The product of its digits is 338688, while the sum is 47.

The square root of 7968728 is about 2822.8935509509. The cubic root of 7968728 is about 199.7390596989.

The spelling of 7968728 in words is "seven million, nine hundred sixty-eight thousand, seven hundred twenty-eight".