3993404 has 12 divisors (see below), whose sum is σ = 7042728. Its totient is φ = 1981200.

The previous prime is 3993397. The next prime is 3993427. The reversal of 3993404 is 4043993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3287 + ... + 4334.

It is an arithmetic number, because the mean of its divisors is an integer number (586894).

Almost surely, 2^3993404 is an apocalyptic number.

It is an amenable number.

3993404 is a deficient number, since it is larger than the sum of its proper divisors (3049324).

3993404 is a wasteful number, since it uses less digits than its factorization.

3993404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7756 (or 7754 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3993404 is about 1998.3503196387. The cubic root of 3993404 is about 158.6528030476.

The spelling of 3993404 in words is "three million, nine hundred ninety-three thousand, four hundred four".