99399328 has 48 divisors (see below), whose sum is σ = 224368704. Its totient is φ = 42462720.

The previous prime is 99399319. The next prime is 99399329. The reversal of 99399328 is 82399399.

It is not an unprimeable number, because it can be changed into a prime (99399329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101883 + ... + 102853.

It is an arithmetic number, because the mean of its divisors is an integer number (4674348).

Almost surely, 2^99399328 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 99399328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112184352).

99399328 is an abundant number, since it is smaller than the sum of its proper divisors (124969376).

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

99399328 is a wasteful number, since it uses less digits than its factorization.

99399328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1437 counting only the distinct ones).

The product of its digits is 944784, while the sum is 52.

The square root of 99399328 is about 9969.9211631788. The cubic root of 99399328 is about 463.2276588474.

The spelling of 99399328 in words is "ninety-nine million, three hundred ninety-nine thousand, three hundred twenty-eight".