6385864 has 16 divisors (see below), whose sum is σ = 12200220. Its totient is φ = 3132480.

The previous prime is 6385859. The next prime is 6385871. The reversal of 6385864 is 4685836.

It can be written as a sum of positive squares in 2 ways, for example, as 5963364 + 422500 = 2442^2 + 650^2 .

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, 7107 + ... + 7954.

Almost surely, 2^6385864 is an apocalyptic number.

It is an amenable number.

6385864 is a deficient number, since it is larger than the sum of its proper divisors (5814356).

6385864 is a wasteful number, since it uses less digits than its factorization.

6385864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15120 (or 15116 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 6385864 is about 2527.0267113745. The cubic root of 6385864 is about 185.5267577881.

The spelling of 6385864 in words is "six million, three hundred eighty-five thousand, eight hundred sixty-four".