13858986 has 16 divisors (see below), whose sum is σ = 28363104. Its totient is φ = 4512144.

The previous prime is 13858981. The next prime is 13858993. The reversal of 13858986 is 68985831.

It is not an unprimeable number, because it can be changed into a prime (13858981) 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 7 ways as a sum of consecutive naturals, for example, 26601 + ... + 27116.

It is an arithmetic number, because the mean of its divisors is an integer number (1772694).

Almost surely, 2^13858986 is an apocalyptic number.

13858986 is an abundant number, since it is smaller than the sum of its proper divisors (14504118).

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

13858986 is a wasteful number, since it uses less digits than its factorization.

13858986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53765.

The product of its digits is 414720, while the sum is 48.

The square root of 13858986 is about 3722.7659072254. The cubic root of 13858986 is about 240.2022947167.

The spelling of 13858986 in words is "thirteen million, eight hundred fifty-eight thousand, nine hundred eighty-six".