3972996 has 24 divisors (see below), whose sum is σ = 10300640. Its totient is φ = 1324296.

The previous prime is 3972979. The next prime is 3973007. The reversal of 3972996 is 6992793.

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, 18286 + ... + 18501.

Almost surely, 2^3972996 is an apocalyptic number.

3972996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3972996 is an abundant number, since it is smaller than the sum of its proper divisors (6327644).

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

3972996 is a wasteful number, since it uses less digits than its factorization.

3972996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36800 (or 36792 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 3972996 is about 1993.2375673763. The cubic root of 3972996 is about 158.3820801583.

The spelling of 3972996 in words is "three million, nine hundred seventy-two thousand, nine hundred ninety-six".