9879109 has 4 divisors (see below), whose sum is σ = 9918720. Its totient is φ = 9839500.

The previous prime is 9879101. The next prime is 9879131. The reversal of 9879109 is 9019789.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 9879109 - 2³ = 9879101 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 (9879101) 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 3 ways as a sum of consecutive naturals, for example, 19429 + ... + 19930.

It is an arithmetic number, because the mean of its divisors is an integer number (2479680).

Almost surely, 2^9879109 is an apocalyptic number.

It is an amenable number.

9879109 is a deficient number, since it is larger than the sum of its proper divisors (39611).

9879109 is a wasteful number, since it uses less digits than its factorization.

9879109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39610.

The product of its (nonzero) digits is 40824, while the sum is 43.

The square root of 9879109 is about 3143.1049934738. The cubic root of 9879109 is about 214.5717742938.

The spelling of 9879109 in words is "nine million, eight hundred seventy-nine thousand, one hundred nine".