109879917 has 16 divisors (see below), whose sum is σ = 168645120. Its totient is φ = 62335152.

The previous prime is 109879873. The next prime is 109879967. The reversal of 109879917 is 719978901.

It is not a de Polignac number, because 109879917 - 2¹⁶ = 109814381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109879917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109879967) 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 15 ways as a sum of consecutive naturals, for example, 15903 + ... + 21740.

It is an arithmetic number, because the mean of its divisors is an integer number (10540320).

Almost surely, 2^109879917 is an apocalyptic number.

It is an amenable number.

109879917 is a deficient number, since it is larger than the sum of its proper divisors (58765203).

109879917 is a wasteful number, since it uses less digits than its factorization.

109879917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37792.

The product of its (nonzero) digits is 285768, while the sum is 51.

The square root of 109879917 is about 10482.3621860724. The cubic root of 109879917 is about 478.9675682617.

The spelling of 109879917 in words is "one hundred nine million, eight hundred seventy-nine thousand, nine hundred seventeen".