6993904 has 20 divisors (see below), whose sum is σ = 13592880. Its totient is φ = 3486080.

The previous prime is 6993893. The next prime is 6993913. The reversal of 6993904 is 4093996.

6993904 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×6993904² = 97829386322432, which contains 22 as substring.

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, 7917 + ... + 8755.

It is an arithmetic number, because the mean of its divisors is an integer number (679644).

Almost surely, 2^6993904 is an apocalyptic number.

It is an amenable number.

6993904 is a deficient number, since it is larger than the sum of its proper divisors (6598976).

6993904 is a wasteful number, since it uses less digits than its factorization.

6993904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368 (or 1362 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 6993904 is about 2644.5990244270. The cubic root of 6993904 is about 191.2375724905.

The spelling of 6993904 in words is "six million, nine hundred ninety-three thousand, nine hundred four".