13899964 has 12 divisors (see below), whose sum is σ = 26196184. Its totient is φ = 6415344.

The previous prime is 13899959. The next prime is 13899967. The reversal of 13899964 is 46999831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13899967) by changing a digit.

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, 133602 + ... + 133705.

Almost surely, 2^13899964 is an apocalyptic number.

It is an amenable number.

13899964 is a deficient number, since it is larger than the sum of its proper divisors (12296220).

13899964 is a wasteful number, since it uses less digits than its factorization.

13899964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267324 (or 267322 counting only the distinct ones).

The product of its digits is 419904, while the sum is 49.

The square root of 13899964 is about 3728.2655484823. The cubic root of 13899964 is about 240.4388037063.

The spelling of 13899964 in words is "thirteen million, eight hundred ninety-nine thousand, nine hundred sixty-four".