6816904 has 16 divisors (see below), whose sum is σ = 12831120. Its totient is φ = 3395280.

The previous prime is 6816889. The next prime is 6816907. The reversal of 6816904 is 4096186.

It is a self number, because there is not a number n which added to its sum of digits gives 6816904.

It is not an unprimeable number, because it can be changed into a prime (6816907) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 759 + ... + 3769.

It is an arithmetic number, because the mean of its divisors is an integer number (801945).

Almost surely, 2^6816904 is an apocalyptic number.

It is an amenable number.

6816904 is a deficient number, since it is larger than the sum of its proper divisors (6014216).

6816904 is a wasteful number, since it uses less digits than its factorization.

6816904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3300 (or 3296 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 6816904 is about 2610.9201443169. The cubic root of 6816904 is about 189.6105040262.

The spelling of 6816904 in words is "six million, eight hundred sixteen thousand, nine hundred four".