99672198 has 16 divisors (see below), whose sum is σ = 199812096. Its totient is φ = 33146120.

The previous prime is 99672187. The next prime is 99672203. The reversal of 99672198 is 89127699.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 99672198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16686 + ... + 21857.

It is an arithmetic number, because the mean of its divisors is an integer number (12488256).

Almost surely, 2^99672198 is an apocalyptic number.

99672198 is an abundant number, since it is smaller than the sum of its proper divisors (100139898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99672198 is a wasteful number, since it uses less digits than its factorization.

99672198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38979.

The product of its digits is 489888, while the sum is 51.

The square root of 99672198 is about 9983.5964461711. The cubic root of 99672198 is about 463.6511541400.

The spelling of 99672198 in words is "ninety-nine million, six hundred seventy-two thousand, one hundred ninety-eight".