108256891 has 4 divisors (see below), whose sum is σ = 108290512. Its totient is φ = 108223272.

The previous prime is 108256879. The next prime is 108256903. The reversal of 108256891 is 198652801.

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

It is an interprime number because it is at equal distance from previous prime (108256879) and next prime (108256903).

It is a cyclic number.

It is not a de Polignac number, because 108256891 - 2⁵ = 108256859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108256801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11400 + ... + 18613.

It is an arithmetic number, because the mean of its divisors is an integer number (27072628).

Almost surely, 2^108256891 is an apocalyptic number.

108256891 is a deficient number, since it is larger than the sum of its proper divisors (33621).

108256891 is an equidigital number, since it uses as much as digits as its factorization.

108256891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33620.

The product of its (nonzero) digits is 34560, while the sum is 40.

The square root of 108256891 is about 10404.6571783985. The cubic root of 108256891 is about 476.5975990582.

The spelling of 108256891 in words is "one hundred eight million, two hundred fifty-six thousand, eight hundred ninety-one".