13888799 has 2 divisors, whose sum is σ = 13888800. Its totient is φ = 13888798.

The previous prime is 13888793. The next prime is 13888817. The reversal of 13888799 is 99788831.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13888799 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13888799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13888793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6944399 + 6944400.

It is an arithmetic number, because the mean of its divisors is an integer number (6944400).

Almost surely, 2^13888799 is an apocalyptic number.

13888799 is a deficient number, since it is larger than the sum of its proper divisors (1).

13888799 is an equidigital number, since it uses as much as digits as its factorization.

13888799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 53.

The square root of 13888799 is about 3726.7679026202. The cubic root of 13888799 is about 240.3744098146.

The spelling of 13888799 in words is "thirteen million, eight hundred eighty-eight thousand, seven hundred ninety-nine".