13886918 has 4 divisors (see below), whose sum is σ = 20830380. Its totient is φ = 6943458.

The previous prime is 13886897. The next prime is 13886921. The reversal of 13886918 is 81968831.

It is a happy number.

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

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, 3471728 + ... + 3471731.

It is an arithmetic number, because the mean of its divisors is an integer number (5207595).

Almost surely, 2^13886918 is an apocalyptic number.

13886918 is a deficient number, since it is larger than the sum of its proper divisors (6943462).

13886918 is an equidigital number, since it uses as much as digits as its factorization.

13886918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6943461.

The product of its digits is 82944, while the sum is 44.

The square root of 13886918 is about 3726.5155306264. The cubic root of 13886918 is about 240.3635577921.

The spelling of 13886918 in words is "thirteen million, eight hundred eighty-six thousand, nine hundred eighteen".