6404504 has 16 divisors (see below), whose sum is σ = 12077520. Its totient is φ = 3183840.

The previous prime is 6404477. The next prime is 6404521. The reversal of 6404504 is 4054046.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6404504.

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 3 ways as a sum of consecutive naturals, for example, 764 + ... + 3659.

It is an arithmetic number, because the mean of its divisors is an integer number (754845).

Almost surely, 2^6404504 is an apocalyptic number.

It is an amenable number.

6404504 is a deficient number, since it is larger than the sum of its proper divisors (5673016).

6404504 is a wasteful number, since it uses less digits than its factorization.

6404504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4610 (or 4606 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 6404504 is about 2530.7121527349. The cubic root of 6404504 is about 185.7070967068.

The spelling of 6404504 in words is "six million, four hundred four thousand, five hundred four".