99083820 has 96 divisors (see below), whose sum is σ = 320495616. Its totient is φ = 22604800.

The previous prime is 99083813. The next prime is 99083861. The reversal of 99083820 is 2838099.

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, 6805 + ... + 15635.

It is an arithmetic number, because the mean of its divisors is an integer number (3338496).

Almost surely, 2^99083820 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 99083820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160247808).

99083820 is an abundant number, since it is smaller than the sum of its proper divisors (221411796).

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

99083820 is a wasteful number, since it uses less digits than its factorization.

99083820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8871 (or 8869 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 99083820 is about 9954.0855933632. The cubic root of 99083820 is about 462.7370219240.

The spelling of 99083820 in words is "ninety-nine million, eighty-three thousand, eight hundred twenty".