108386918 has 16 divisors (see below), whose sum is σ = 167576640. Its totient is φ = 52546536.

The previous prime is 108386909. The next prime is 108386933. The reversal of 108386918 is 819683801.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 7421 + ... + 16487.

It is an arithmetic number, because the mean of its divisors is an integer number (10473540).

Almost surely, 2^108386918 is an apocalyptic number.

108386918 is a deficient number, since it is larger than the sum of its proper divisors (59189722).

108386918 is a wasteful number, since it uses less digits than its factorization.

108386918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9251.

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

The square root of 108386918 is about 10410.9038032248. The cubic root of 108386918 is about 476.7883359899.

The spelling of 108386918 in words is "one hundred eight million, three hundred eighty-six thousand, nine hundred eighteen".