99588 has 24 divisors (see below), whose sum is σ = 239008. Its totient is φ = 32256.

The previous prime is 99581. The next prime is 99607. The reversal of 99588 is 88599.

It is not an unprimeable number, because it can be changed into a prime (99581) by changing a digit.

99588 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420 + ... + 612.

2⁹⁹⁵⁸⁸ is an apocalyptic number.

It is an amenable number.

99588 is an abundant number, since it is smaller than the sum of its proper divisors (139420).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119504).

99588 is a wasteful number, since it uses less digits than its factorization.

99588 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 241 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The square root of 99588 is about 315.5756644610. The cubic root of 99588 is about 46.3520561061.

The spelling of 99588 in words is "ninety-nine thousand, five hundred eighty-eight".