6390704 has 20 divisors (see below), whose sum is σ = 12480600. Its totient is φ = 3169920.

The previous prime is 6390697. The next prime is 6390719. The reversal of 6390704 is 4070936.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

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, 572 + ... + 3620.

It is an arithmetic number, because the mean of its divisors is an integer number (624030).

Almost surely, 2^6390704 is an apocalyptic number.

It is an amenable number.

6390704 is a deficient number, since it is larger than the sum of its proper divisors (6089896).

6390704 is a wasteful number, since it uses less digits than its factorization.

6390704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3188 (or 3182 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 6390704 is about 2527.9841771657. The cubic root of 6390704 is about 185.5736176829.

The spelling of 6390704 in words is "six million, three hundred ninety thousand, seven hundred four".