99198109 has 8 divisors (see below), whose sum is σ = 102533120. Its totient is φ = 95871600.

The previous prime is 99198101. The next prime is 99198133. The reversal of 99198109 is 90189199.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99198109 - 2³ = 99198101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99198101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29107 + ... + 32335.

It is an arithmetic number, because the mean of its divisors is an integer number (12816640).

Almost surely, 2^99198109 is an apocalyptic number.

It is an amenable number.

99198109 is a deficient number, since it is larger than the sum of its proper divisors (3335011).

99198109 is a wasteful number, since it uses less digits than its factorization.

99198109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4251.

The product of its (nonzero) digits is 52488, while the sum is 46.

The square root of 99198109 is about 9959.8247474541. The cubic root of 99198109 is about 462.9148694296.

The spelling of 99198109 in words is "ninety-nine million, one hundred ninety-eight thousand, one hundred nine".