99315888 has 160 divisors (see below), whose sum is σ = 316170240. Its totient is φ = 26231040.

The previous prime is 99315883. The next prime is 99315919. The reversal of 99315888 is 88851399.

It is a self number, because there is not a number n which added to its sum of digits gives 99315888.

It is not an unprimeable number, because it can be changed into a prime (99315883) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299883 + ... + 300213.

It is an arithmetic number, because the mean of its divisors is an integer number (1976064).

Almost surely, 2^99315888 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 99315888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158085120).

99315888 is an abundant number, since it is smaller than the sum of its proper divisors (216854352).

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

99315888 is a wasteful number, since it uses less digits than its factorization.

99315888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 409 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The square root of 99315888 is about 9965.7356978800. The cubic root of 99315888 is about 463.0980049319.

It can be divided in two parts, 993 and 15888, that multiplied together give a square (15776784 = 3972²).

The spelling of 99315888 in words is "ninety-nine million, three hundred fifteen thousand, eight hundred eighty-eight".