6408664 has 16 divisors (see below), whose sum is σ = 12072600. Its totient is φ = 3189312.

The previous prime is 6408653. The next prime is 6408691. The reversal of 6408664 is 4668046.

6408664 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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, 52 + ... + 3580.

Almost surely, 2^6408664 is an apocalyptic number.

It is an amenable number.

6408664 is a deficient number, since it is larger than the sum of its proper divisors (5663936).

6408664 is a wasteful number, since it uses less digits than its factorization.

6408664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762 (or 3758 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 6408664 is about 2531.5339223483. The cubic root of 6408664 is about 185.7472962453.

The spelling of 6408664 in words is "six million, four hundred eight thousand, six hundred sixty-four".