13893686 has 4 divisors (see below), whose sum is σ = 20840532. Its totient is φ = 6946842.

The previous prime is 13893667. The next prime is 13893707. The reversal of 13893686 is 68639831.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3473420 + ... + 3473423.

It is an arithmetic number, because the mean of its divisors is an integer number (5210133).

Almost surely, 2^13893686 is an apocalyptic number.

13893686 is a deficient number, since it is larger than the sum of its proper divisors (6946846).

13893686 is an equidigital number, since it uses as much as digits as its factorization.

13893686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6946845.

The product of its digits is 186624, while the sum is 44.

The square root of 13893686 is about 3727.4235069281. The cubic root of 13893686 is about 240.4025997247.

The spelling of 13893686 in words is "thirteen million, eight hundred ninety-three thousand, six hundred eighty-six".