13959858 has 32 divisors (see below), whose sum is σ = 31444992. Its totient is φ = 4093200.

The previous prime is 13959833. The next prime is 13959871. The reversal of 13959858 is 85895931.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1366 + ... + 5457.

It is an arithmetic number, because the mean of its divisors is an integer number (982656).

Almost surely, 2^13959858 is an apocalyptic number.

13959858 is an abundant number, since it is smaller than the sum of its proper divisors (17485134).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13959858 is a wasteful number, since it uses less digits than its factorization.

13959858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6870.

The product of its digits is 388800, while the sum is 48.

The square root of 13959858 is about 3736.2893356912. The cubic root of 13959858 is about 240.7836536882.

It can be divided in two parts, 139598 and 58, that added together give a triangular number (139656 = T₅₂₈).

The spelling of 13959858 in words is "thirteen million, nine hundred fifty-nine thousand, eight hundred fifty-eight".