99893632 has 64 divisors (see below), whose sum is σ = 218116800. Its totient is φ = 45359104.

The previous prime is 99893579. The next prime is 99893641. The reversal of 99893632 is 23639899.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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, 62313 + ... + 63895.

It is an arithmetic number, because the mean of its divisors is an integer number (3408075).

Almost surely, 2^99893632 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 99893632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109058400).

99893632 is an abundant number, since it is smaller than the sum of its proper divisors (118223168).

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

99893632 is a wasteful number, since it uses less digits than its factorization.

99893632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1643 (or 1631 counting only the distinct ones).

The product of its digits is 629856, while the sum is 49.

The square root of 99893632 is about 9994.6801849784. The cubic root of 99893632 is about 463.9942528024.

The spelling of 99893632 in words is "ninety-nine million, eight hundred ninety-three thousand, six hundred thirty-two".