99000858 has 32 divisors (see below), whose sum is σ = 217598400. Its totient is φ = 29778560.

The previous prime is 99000857. The next prime is 99000883. The reversal of 99000858 is 85800099.

It is not an unprimeable number, because it can be changed into a prime (99000851) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3568 + ... + 14516.

It is an arithmetic number, because the mean of its divisors is an integer number (6799950).

Almost surely, 2^99000858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99000858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108799200).

99000858 is an abundant number, since it is smaller than the sum of its proper divisors (118597542).

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

99000858 is a wasteful number, since it uses less digits than its factorization.

99000858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11102.

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

The square root of 99000858 is about 9949.9174870951. The cubic root of 99000858 is about 462.6078373332.

The spelling of 99000858 in words is "ninety-nine million, eight hundred fifty-eight", and thus it is an aban number.