7972636 has 12 divisors (see below), whose sum is σ = 15945328. Its totient is φ = 3416832.

The previous prime is 7972633. The next prime is 7972663. The reversal of 7972636 is 6362797.

7972636 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7972633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142341 + ... + 142396.

Almost surely, 2^7972636 is an apocalyptic number.

It is an amenable number.

7972636 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

7972636 is a wasteful number, since it uses less digits than its factorization.

7972636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284748 (or 284746 counting only the distinct ones).

The product of its digits is 95256, while the sum is 40.

The square root of 7972636 is about 2823.5856636553. The cubic root of 7972636 is about 199.7717061755.

The spelling of 7972636 in words is "seven million, nine hundred seventy-two thousand, six hundred thirty-six".