13937664 has 88 divisors (see below), whose sum is σ = 40121200. Its totient is φ = 4276224.

The previous prime is 13937657. The next prime is 13937683. The reversal of 13937664 is 46673931.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39762 + ... + 40110.

Almost surely, 2^13937664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13937664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20060600).

13937664 is an abundant number, since it is smaller than the sum of its proper divisors (26183536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13937664 is a wasteful number, since it uses less digits than its factorization.

13937664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 367 counting only the distinct ones).

The product of its digits is 81648, while the sum is 39.

The square root of 13937664 is about 3733.3180952070. The cubic root of 13937664 is about 240.6559831696.

The spelling of 13937664 in words is "thirteen million, nine hundred thirty-seven thousand, six hundred sixty-four".