13385864 has 16 divisors (see below), whose sum is σ = 25443420. Its totient is φ = 6600960.

The previous prime is 13385837. The next prime is 13385873. The reversal of 13385864 is 46858331.

It can be written as a sum of positive squares in 2 ways, for example, as 13380964 + 4900 = 3658^2 + 70^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10877 + ... + 12044.

Almost surely, 2^13385864 is an apocalyptic number.

It is an amenable number.

13385864 is a deficient number, since it is larger than the sum of its proper divisors (12057556).

13385864 is a wasteful number, since it uses less digits than its factorization.

13385864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23000 (or 22996 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 13385864 is about 3658.6697035945. The cubic root of 13385864 is about 237.4372221887.

The spelling of 13385864 in words is "thirteen million, three hundred eighty-five thousand, eight hundred sixty-four".