108864891 has 10 divisors (see below), whose sum is σ = 162625452. Its totient is φ = 72576540.

The previous prime is 108864871. The next prime is 108864893. The reversal of 108864891 is 198468801.

It is not a de Polignac number, because 108864891 - 2⁵ = 108864859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108864893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 671925 + ... + 672086.

Almost surely, 2^108864891 is an apocalyptic number.

108864891 is a deficient number, since it is larger than the sum of its proper divisors (53760561).

108864891 is an equidigital number, since it uses as much as digits as its factorization.

108864891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344023 (or 1344014 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 108864891 is about 10433.8339549755. The cubic root of 108864891 is about 477.4881676116.

The spelling of 108864891 in words is "one hundred eight million, eight hundred sixty-four thousand, eight hundred ninety-one".