6406904 has 32 divisors (see below), whose sum is σ = 13824000. Its totient is φ = 2726880.

The previous prime is 6406879. The next prime is 6406913. The reversal of 6406904 is 4096046.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10397 + ... + 10995.

It is an arithmetic number, because the mean of its divisors is an integer number (432000).

Almost surely, 2^6406904 is an apocalyptic number.

It is an amenable number.

6406904 is an abundant number, since it is smaller than the sum of its proper divisors (7417096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6406904 is a wasteful number, since it uses less digits than its factorization.

6406904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 6406904 is about 2531.1862831487. The cubic root of 6406904 is about 185.7302908719.

The spelling of 6406904 in words is "six million, four hundred six thousand, nine hundred four".