99399632 has 20 divisors (see below), whose sum is σ = 193590660. Its totient is φ = 49440768.

The previous prime is 99399623. The next prime is 99399637. The reversal of 99399632 is 23699399.

It can be written as a sum of positive squares in 2 ways, for example, as 27081616 + 72318016 = 5204^2 + 8504^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99399637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13007 + ... + 19182.

It is an arithmetic number, because the mean of its divisors is an integer number (9679533).

Almost surely, 2^99399632 is an apocalyptic number.

It is an amenable number.

99399632 is a deficient number, since it is larger than the sum of its proper divisors (94191028).

99399632 is a wasteful number, since it uses less digits than its factorization.

99399632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32390 (or 32384 counting only the distinct ones).

The product of its digits is 708588, while the sum is 50.

The square root of 99399632 is about 9969.9364090249. The cubic root of 99399632 is about 463.2281310875.

The spelling of 99399632 in words is "ninety-nine million, three hundred ninety-nine thousand, six hundred thirty-two".