6404764 has 24 divisors (see below), whose sum is σ = 11975040. Its totient is φ = 2990064.

The previous prime is 6404753. The next prime is 6404771. The reversal of 6404764 is 4674046.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3147 + ... + 4765.

It is an arithmetic number, because the mean of its divisors is an integer number (498960).

Almost surely, 2^6404764 is an apocalyptic number.

It is an amenable number.

6404764 is a deficient number, since it is larger than the sum of its proper divisors (5570276).

6404764 is a wasteful number, since it uses less digits than its factorization.

6404764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1689 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 6404764 is about 2530.7635211533. The cubic root of 6404764 is about 185.7096096878.

The spelling of 6404764 in words is "six million, four hundred four thousand, seven hundred sixty-four".