99881700 has 72 divisors (see below), whose sum is σ = 290481408. Its totient is φ = 26497920.

The previous prime is 99881687. The next prime is 99881711. The reversal of 99881700 is 718899.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66154 + ... + 67646.

It is an arithmetic number, because the mean of its divisors is an integer number (4034464).

Almost surely, 2^99881700 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 99881700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145240704).

99881700 is an abundant number, since it is smaller than the sum of its proper divisors (190599708).

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

99881700 is a wasteful number, since it uses less digits than its factorization.

99881700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733 (or 1726 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 42.

The square root of 99881700 is about 9994.0832496032. The cubic root of 99881700 is about 463.9757778180.

The spelling of 99881700 in words is "ninety-nine million, eight hundred eighty-one thousand, seven hundred".