7657972 has 24 divisors (see below), whose sum is σ = 15845760. Its totient is φ = 3168480.

The previous prime is 7657967. The next prime is 7657987. The reversal of 7657972 is 2797567.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3904 + ... + 5527.

It is an arithmetic number, because the mean of its divisors is an integer number (660240).

Almost surely, 2^7657972 is an apocalyptic number.

It is an amenable number.

7657972 is an abundant number, since it is smaller than the sum of its proper divisors (8187788).

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

7657972 is a wasteful number, since it uses less digits than its factorization.

7657972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9471 (or 9469 counting only the distinct ones).

The product of its digits is 185220, while the sum is 43.

The square root of 7657972 is about 2767.3041032745. The cubic root of 7657972 is about 197.1081543422.

The spelling of 7657972 in words is "seven million, six hundred fifty-seven thousand, nine hundred seventy-two".