99633798 has 48 divisors (see below), whose sum is σ = 237281616. Its totient is φ = 29963520.

The previous prime is 99633797. The next prime is 99633811. The reversal of 99633798 is 89733699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99633797) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25290 + ... + 28962.

It is an arithmetic number, because the mean of its divisors is an integer number (4943367).

Almost surely, 2^99633798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99633798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118640808).

99633798 is an abundant number, since it is smaller than the sum of its proper divisors (137647818).

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

99633798 is a wasteful number, since it uses less digits than its factorization.

99633798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3829 (or 3826 counting only the distinct ones).

The product of its digits is 2204496, while the sum is 54.

The square root of 99633798 is about 9981.6731062483. The cubic root of 99633798 is about 463.5916039625.

Subtracting from 99633798 its reverse (89733699), we obtain a palindrome (9900099).

The spelling of 99633798 in words is "ninety-nine million, six hundred thirty-three thousand, seven hundred ninety-eight".