109855879 has 4 divisors (see below), whose sum is σ = 125549584. Its totient is φ = 94162176.

The previous prime is 109855877. The next prime is 109855901. The reversal of 109855879 is 978558901.

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

It is a cyclic number.

It is not a de Polignac number, because 109855879 - 2¹ = 109855877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109855877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7846842 + ... + 7846855.

It is an arithmetic number, because the mean of its divisors is an integer number (31387396).

Almost surely, 2^109855879 is an apocalyptic number.

109855879 is a deficient number, since it is larger than the sum of its proper divisors (15693705).

109855879 is an equidigital number, since it uses as much as digits as its factorization.

109855879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15693704.

The product of its (nonzero) digits is 907200, while the sum is 52.

The square root of 109855879 is about 10481.2155306529. The cubic root of 109855879 is about 478.9326384267.

The spelling of 109855879 in words is "one hundred nine million, eight hundred fifty-five thousand, eight hundred seventy-nine".