13399964 has 12 divisors (see below), whose sum is σ = 23480184. Its totient is φ = 6691344.

The previous prime is 13399951. The next prime is 13399979. The reversal of 13399964 is 46999331.

It is a congruent number.

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, 2399 + ... + 5705.

It is an arithmetic number, because the mean of its divisors is an integer number (1956682).

Almost surely, 2^13399964 is an apocalyptic number.

It is an amenable number.

13399964 is a deficient number, since it is larger than the sum of its proper divisors (10080220).

13399964 is a wasteful number, since it uses less digits than its factorization.

13399964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4324 (or 4322 counting only the distinct ones).

The product of its digits is 157464, while the sum is 44.

The square root of 13399964 is about 3660.5961263160. The cubic root of 13399964 is about 237.5205611008.

The spelling of 13399964 in words is "thirteen million, three hundred ninety-nine thousand, nine hundred sixty-four".