99072528 has 80 divisors (see below), whose sum is σ = 266649600. Its totient is φ = 31662720.

The previous prime is 99072527. The next prime is 99072539. The reversal of 99072528 is 82527099.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 99072528.

It is not an unprimeable number, because it can be changed into a prime (99072521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206593 + ... + 207071.

It is an arithmetic number, because the mean of its divisors is an integer number (3333120).

Almost surely, 2^99072528 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 99072528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133324800).

99072528 is an abundant number, since it is smaller than the sum of its proper divisors (167577072).

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

99072528 is a wasteful number, since it uses less digits than its factorization.

99072528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660 (or 654 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 99072528 is about 9953.5183729172. The cubic root of 99072528 is about 462.7194427842.

The spelling of 99072528 in words is "ninety-nine million, seventy-two thousand, five hundred twenty-eight".