99399936 has 72 divisors (see below), whose sum is σ = 273732480. Its totient is φ = 31983616.

The previous prime is 99399899. The next prime is 99399941. The reversal of 99399936 is 63999399.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20041 + ... + 24503.

It is an arithmetic number, because the mean of its divisors is an integer number (3801840).

Almost surely, 2^99399936 is an apocalyptic number.

99399936 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99399936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136866240).

99399936 is an abundant number, since it is smaller than the sum of its proper divisors (174332544).

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

99399936 is a wasteful number, since it uses less digits than its factorization.

99399936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511 (or 4497 counting only the distinct ones).

The product of its digits is 3188646, while the sum is 57.

The square root of 99399936 is about 9969.9516548477. The cubic root of 99399936 is about 463.2286033267.

The spelling of 99399936 in words is "ninety-nine million, three hundred ninety-nine thousand, nine hundred thirty-six".