13879686 has 16 divisors (see below), whose sum is σ = 27878400. Its totient is φ = 4606728.

The previous prime is 13879673. The next prime is 13879717. The reversal of 13879686 is 68697831.

13879686 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3406 + ... + 6273.

It is an arithmetic number, because the mean of its divisors is an integer number (1742400).

Almost surely, 2^13879686 is an apocalyptic number.

13879686 is an abundant number, since it is smaller than the sum of its proper divisors (13998714).

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

13879686 is a wasteful number, since it uses less digits than its factorization.

13879686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9923.

The product of its digits is 435456, while the sum is 48.

The square root of 13879686 is about 3725.5450607931. The cubic root of 13879686 is about 240.3218252038.

The spelling of 13879686 in words is "thirteen million, eight hundred seventy-nine thousand, six hundred eighty-six".