108930891 has 16 divisors (see below), whose sum is σ = 149149728. Its totient is φ = 70675200.

The previous prime is 108930881. The next prime is 108930893. The reversal of 108930891 is 198039801.

It is a happy number.

It is not a de Polignac number, because 108930891 - 2⁵ = 108930859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108930893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65725 + ... + 67361.

It is an arithmetic number, because the mean of its divisors is an integer number (9321858).

Almost surely, 2^108930891 is an apocalyptic number.

108930891 is a deficient number, since it is larger than the sum of its proper divisors (40218837).

108930891 is a wasteful number, since it uses less digits than its factorization.

108930891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 108930891 is about 10436.9962632934. The cubic root of 108930891 is about 477.5846414834.

The spelling of 108930891 in words is "one hundred eight million, nine hundred thirty thousand, eight hundred ninety-one".