13888716 has 12 divisors (see below), whose sum is σ = 32407032. Its totient is φ = 4629568.

The previous prime is 13888669. The next prime is 13888723. The reversal of 13888716 is 61788831.

It is a tau number, because it is divible by the number of its divisors (12).

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, 578685 + ... + 578708.

It is an arithmetic number, because the mean of its divisors is an integer number (2700586).

Almost surely, 2^13888716 is an apocalyptic number.

It is an amenable number.

13888716 is an abundant number, since it is smaller than the sum of its proper divisors (18518316).

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

13888716 is a wasteful number, since it uses less digits than its factorization.

13888716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157400 (or 1157398 counting only the distinct ones).

The product of its digits is 64512, while the sum is 42.

The square root of 13888716 is about 3726.7567669490. The cubic root of 13888716 is about 240.3739309847.

The spelling of 13888716 in words is "thirteen million, eight hundred eighty-eight thousand, seven hundred sixteen".