99920832 has 224 divisors, whose sum is σ = 321283584. Its totient is φ = 27258880.

The previous prime is 99920827. The next prime is 99920893. The reversal of 99920832 is 23802999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4344373 + ... + 4344395.

Almost surely, 2^99920832 is an apocalyptic number.

99920832 is a gapful number since it is divisible by the number (92) 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 99920832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160641792).

99920832 is an abundant number, since it is smaller than the sum of its proper divisors (221362752).

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

99920832 is a wasteful number, since it uses less digits than its factorization.

99920832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 56 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 99920832 is about 9996.0408162432. The cubic root of 99920832 is about 464.0363625882.

The spelling of 99920832 in words is "ninety-nine million, nine hundred twenty thousand, eight hundred thirty-two".