13919859 has 12 divisors (see below), whose sum is σ = 20382856. Its totient is φ = 9152352.

The previous prime is 13919839. The next prime is 13919861. The reversal of 13919859 is 95891931.

13919859 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13919859 - 2⁵ = 13919827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13919819) 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 11 ways as a sum of consecutive naturals, for example, 9937 + ... + 11250.

Almost surely, 2^13919859 is an apocalyptic number.

13919859 is a deficient number, since it is larger than the sum of its proper divisors (6462997).

13919859 is a wasteful number, since it uses less digits than its factorization.

13919859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21266 (or 21263 counting only the distinct ones).

The product of its digits is 87480, while the sum is 45.

The square root of 13919859 is about 3730.9327252042. The cubic root of 13919859 is about 240.5534622669.

The spelling of 13919859 in words is "thirteen million, nine hundred nineteen thousand, eight hundred fifty-nine".