7637972 has 12 divisors (see below), whose sum is σ = 13692756. Its totient is φ = 3725760.

The previous prime is 7637969. The next prime is 7637977. The reversal of 7637972 is 2797367.

It can be written as a sum of positive squares in 2 ways, for example, as 163216 + 7474756 = 404^2 + 2734^2 .

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7637977) 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, 23123 + ... + 23450.

It is an arithmetic number, because the mean of its divisors is an integer number (1141063).

Almost surely, 2^7637972 is an apocalyptic number.

It is an amenable number.

7637972 is a deficient number, since it is larger than the sum of its proper divisors (6054784).

7637972 is a wasteful number, since it uses less digits than its factorization.

7637972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46618 (or 46616 counting only the distinct ones).

The product of its digits is 111132, while the sum is 41.

The square root of 7637972 is about 2763.6881155442. The cubic root of 7637972 is about 196.9364117479.

The spelling of 7637972 in words is "seven million, six hundred thirty-seven thousand, nine hundred seventy-two".