6403804 has 36 divisors (see below), whose sum is σ = 12534984. Its totient is φ = 2860000.

The previous prime is 6403769. The next prime is 6403811. The reversal of 6403804 is 4083046.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48819 + ... + 48949.

It is an arithmetic number, because the mean of its divisors is an integer number (348194).

Almost surely, 2^6403804 is an apocalyptic number.

It is an amenable number.

6403804 is a deficient number, since it is larger than the sum of its proper divisors (6131180).

6403804 is a wasteful number, since it uses less digits than its factorization.

6403804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 6403804 is about 2530.5738479641. The cubic root of 6403804 is about 185.7003306505.

It can be divided in two parts, 640 and 3804, that added together give a palindrome (4444).

The spelling of 6403804 in words is "six million, four hundred three thousand, eight hundred four".