13888933 has 2 divisors, whose sum is σ = 13888934. Its totient is φ = 13888932.

The previous prime is 13888879. The next prime is 13888937. The reversal of 13888933 is 33988831.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11009124 + 2879809 = 3318^2 + 1697^2 .

It is a cyclic number.

It is not a de Polignac number, because 13888933 - 2⁹ = 13888421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13888933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13888937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6944466 + 6944467.

It is an arithmetic number, because the mean of its divisors is an integer number (6944467).

Almost surely, 2^13888933 is an apocalyptic number.

It is an amenable number.

13888933 is a deficient number, since it is larger than the sum of its proper divisors (1).

13888933 is an equidigital number, since it uses as much as digits as its factorization.

13888933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 43.

The square root of 13888933 is about 3726.7858806215. The cubic root of 13888933 is about 240.3751828612.

The spelling of 13888933 in words is "thirteen million, eight hundred eighty-eight thousand, nine hundred thirty-three".