9899109 has 12 divisors (see below), whose sum is σ = 15598752. Its totient is φ = 5999400.

The previous prime is 9899069. The next prime is 9899119. The reversal of 9899109 is 9019989.

It is not a de Polignac number, because 9899109 - 2⁸ = 9898853 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9899119) 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 11 ways as a sum of consecutive naturals, for example, 49897 + ... + 50094.

It is an arithmetic number, because the mean of its divisors is an integer number (1299896).

Almost surely, 2^9899109 is an apocalyptic number.

9899109 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

9899109 is a deficient number, since it is larger than the sum of its proper divisors (5699643).

9899109 is a wasteful number, since it uses less digits than its factorization.

9899109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100008 (or 100005 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 45.

The square root of 9899109 is about 3146.2849521301. The cubic root of 9899109 is about 214.7164750211.

The spelling of 9899109 in words is "nine million, eight hundred ninety-nine thousand, one hundred nine".