6457904 has 20 divisors (see below), whose sum is σ = 12726120. Its totient is φ = 3173760.

The previous prime is 6457879. The next prime is 6457921. The reversal of 6457904 is 4097546.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam 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, 2477 + ... + 4364.

It is an arithmetic number, because the mean of its divisors is an integer number (636306).

Almost surely, 2^6457904 is an apocalyptic number.

It is an amenable number.

6457904 is a deficient number, since it is larger than the sum of its proper divisors (6268216).

6457904 is a wasteful number, since it uses less digits than its factorization.

6457904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6908 (or 6902 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 6457904 is about 2541.2406418913. The cubic root of 6457904 is about 186.2218034579.

The spelling of 6457904 in words is "six million, four hundred fifty-seven thousand, nine hundred four".