13984664 has 8 divisors (see below), whose sum is σ = 26221260. Its totient is φ = 6992328.

The previous prime is 13984661. The next prime is 13984679. The reversal of 13984664 is 46648931.

13984664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13984661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 874034 + ... + 874049.

Almost surely, 2^13984664 is an apocalyptic number.

It is an amenable number.

13984664 is a deficient number, since it is larger than the sum of its proper divisors (12236596).

13984664 is a wasteful number, since it uses less digits than its factorization.

13984664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748089 (or 1748085 counting only the distinct ones).

The product of its digits is 124416, while the sum is 41.

The square root of 13984664 is about 3739.6074660317. The cubic root of 13984664 is about 240.9261896404.

The spelling of 13984664 in words is "thirteen million, nine hundred eighty-four thousand, six hundred sixty-four".