109909879 has 6 divisors (see below), whose sum is σ = 116755784. Its totient is φ = 103444320.

The previous prime is 109909843. The next prime is 109909883. The reversal of 109909879 is 978909901.

It is not a de Polignac number, because 109909879 - 2⁹ = 109909367 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 (109909819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 189867 + ... + 190444.

Almost surely, 2^109909879 is an apocalyptic number.

109909879 is a deficient number, since it is larger than the sum of its proper divisors (6845905).

109909879 is an equidigital number, since it uses as much as digits as its factorization.

109909879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380345 (or 380328 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 52.

The square root of 109909879 is about 10483.7912512602. The cubic root of 109909879 is about 479.0110991830.

The spelling of 109909879 in words is "one hundred nine million, nine hundred nine thousand, eight hundred seventy-nine".