13899959 has 2 divisors, whose sum is σ = 13899960. Its totient is φ = 13899958.

The previous prime is 13899947. The next prime is 13899967. The reversal of 13899959 is 95999831.

13899959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13899959 - 2⁸ = 13899703 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 13899959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13899929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949979 + 6949980.

It is an arithmetic number, because the mean of its divisors is an integer number (6949980).

Almost surely, 2^13899959 is an apocalyptic number.

13899959 is a deficient number, since it is larger than the sum of its proper divisors (1).

13899959 is an equidigital number, since it uses as much as digits as its factorization.

13899959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 787320, while the sum is 53.

The square root of 13899959 is about 3728.2648779291. The cubic root of 13899959 is about 240.4387748766.

The spelling of 13899959 in words is "thirteen million, eight hundred ninety-nine thousand, nine hundred fifty-nine".