13869664 has 24 divisors (see below), whose sum is σ = 27403488. Its totient is φ = 6910080.

The previous prime is 13869649. The next prime is 13869673. The reversal of 13869664 is 46696831.

It is a self number, because there is not a number n which added to its sum of digits gives 13869664.

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, 11154 + ... + 12334.

It is an arithmetic number, because the mean of its divisors is an integer number (1141812).

Almost surely, 2^13869664 is an apocalyptic number.

It is an amenable number.

13869664 is a deficient number, since it is larger than the sum of its proper divisors (13533824).

13869664 is a wasteful number, since it uses less digits than its factorization.

13869664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1558 (or 1550 counting only the distinct ones).

The product of its digits is 186624, while the sum is 43.

The square root of 13869664 is about 3724.1997798185. The cubic root of 13869664 is about 240.2639688214.

The spelling of 13869664 in words is "thirteen million, eight hundred sixty-nine thousand, six hundred sixty-four".