7900972 has 6 divisors (see below), whose sum is σ = 13826708. Its totient is φ = 3950484.

The previous prime is 7900969. The next prime is 7900993. The reversal of 7900972 is 2790097.

7900972 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 987618 + ... + 987625.

Almost surely, 2^7900972 is an apocalyptic number.

It is an amenable number.

7900972 is a deficient number, since it is larger than the sum of its proper divisors (5925736).

7900972 is a wasteful number, since it uses less digits than its factorization.

7900972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1975247 (or 1975245 counting only the distinct ones).

The product of its (nonzero) digits is 7938, while the sum is 34.

The square root of 7900972 is about 2810.8667702330. The cubic root of 7900972 is about 199.1713380050.

The spelling of 7900972 in words is "seven million, nine hundred thousand, nine hundred seventy-two".