99915392 has 96 divisors (see below), whose sum is σ = 220137420. Its totient is φ = 45121536.

The previous prime is 99915367. The next prime is 99915407. The reversal of 99915392 is 29351999.

It can be written as a sum of positive squares in 6 ways, for example, as 94789696 + 5125696 = 9736^2 + 2264^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1368668 + ... + 1368740.

Almost surely, 2^99915392 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 99915392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110068710).

99915392 is an abundant number, since it is smaller than the sum of its proper divisors (120222028).

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

99915392 is a wasteful number, since it uses less digits than its factorization.

99915392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 129 counting only the distinct ones).

The product of its digits is 196830, while the sum is 47.

The square root of 99915392 is about 9995.7687048070. The cubic root of 99915392 is about 464.0279412425.

The spelling of 99915392 in words is "ninety-nine million, nine hundred fifteen thousand, three hundred ninety-two".