108725891 has 8 divisors (see below), whose sum is σ = 111661200. Its totient is φ = 105804160.

The previous prime is 108725879. The next prime is 108725909. The reversal of 108725891 is 198527801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 108725891 - 2²⁶ = 41617027 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108725831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14015 + ... + 20343.

It is an arithmetic number, because the mean of its divisors is an integer number (13957650).

Almost surely, 2^108725891 is an apocalyptic number.

108725891 is a deficient number, since it is larger than the sum of its proper divisors (2935309).

108725891 is an equidigital number, since it uses as much as digits as its factorization.

108725891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6789.

The product of its (nonzero) digits is 40320, while the sum is 41.

The square root of 108725891 is about 10427.1708051609. The cubic root of 108725891 is about 477.2848601833.

The spelling of 108725891 in words is "one hundred eight million, seven hundred twenty-five thousand, eight hundred ninety-one".