13889859 has 16 divisors (see below), whose sum is σ = 18969600. Its totient is φ = 9038016.

The previous prime is 13889831. The next prime is 13889873. The reversal of 13889859 is 95898831.

It is not a de Polignac number, because 13889859 - 2¹⁶ = 13824323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13889059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24127 + ... + 24695.

It is an arithmetic number, because the mean of its divisors is an integer number (1185600).

Almost surely, 2^13889859 is an apocalyptic number.

13889859 is a deficient number, since it is larger than the sum of its proper divisors (5079741).

13889859 is a wasteful number, since it uses less digits than its factorization.

13889859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754.

The product of its digits is 622080, while the sum is 51.

The square root of 13889859 is about 3726.9101142904. The cubic root of 13889859 is about 240.3805248236.

The spelling of 13889859 in words is "thirteen million, eight hundred eighty-nine thousand, eight hundred fifty-nine".