99917112 has 64 divisors (see below), whose sum is σ = 256826880. Its totient is φ = 32378112.

The previous prime is 99917101. The next prime is 99917189. The reversal of 99917112 is 21171999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319068 + ... + 319380.

It is an arithmetic number, because the mean of its divisors is an integer number (4012920).

Almost surely, 2^99917112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99917112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128413440).

99917112 is an abundant number, since it is smaller than the sum of its proper divisors (156909768).

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

99917112 is a wasteful number, since it uses less digits than its factorization.

99917112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652 (or 648 counting only the distinct ones).

The product of its digits is 10206, while the sum is 39.

The square root of 99917112 is about 9995.8547408413. The cubic root of 99917112 is about 464.0306039069.

The spelling of 99917112 in words is "ninety-nine million, nine hundred seventeen thousand, one hundred twelve".