3992812 has 24 divisors (see below), whose sum is σ = 7439040. Its totient is φ = 1869840.

The previous prime is 3992797. The next prime is 3992837. The reversal of 3992812 is 2182993.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

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, 7887 + ... + 8377.

It is an arithmetic number, because the mean of its divisors is an integer number (309960).

Almost surely, 2^3992812 is an apocalyptic number.

It is an amenable number.

3992812 is a deficient number, since it is larger than the sum of its proper divisors (3446228).

3992812 is a wasteful number, since it uses less digits than its factorization.

3992812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 619 counting only the distinct ones).

The product of its digits is 7776, while the sum is 34.

The square root of 3992812 is about 1998.2021919716. The cubic root of 3992812 is about 158.6449628608.

The spelling of 3992812 in words is "three million, nine hundred ninety-two thousand, eight hundred twelve".