99888530 has 32 divisors (see below), whose sum is σ = 211044096. Its totient is φ = 33321024.

The previous prime is 99888511. The next prime is 99888589. The reversal of 99888530 is 3588899.

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16694 + ... + 21873.

It is an arithmetic number, because the mean of its divisors is an integer number (6595128).

Almost surely, 2^99888530 is an apocalyptic number.

99888530 is an abundant number, since it is smaller than the sum of its proper divisors (111155566).

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

99888530 is a wasteful number, since it uses less digits than its factorization.

99888530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38618.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 99888530 is about 9994.4249459386. The cubic root of 99888530 is about 463.9863532699.

The spelling of 99888530 in words is "ninety-nine million, eight hundred eighty-eight thousand, five hundred thirty".