99258 has 16 divisors (see below), whose sum is σ = 202176. Its totient is φ = 32480.

The previous prime is 99257. The next prime is 99259. The reversal of 99258 is 85299.

It is an interprime number because it is at equal distance from previous prime (99257) and next prime (99259).

It is not an unprimeable number, because it can be changed into a prime (99251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310 + ... + 542.

It is an arithmetic number, because the mean of its divisors is an integer number (12636).

2⁹⁹²⁵⁸ is an apocalyptic number.

99258 is an abundant number, since it is smaller than the sum of its proper divisors (102918).

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 (101088).

99258 is a wasteful number, since it uses less digits than its factorization.

99258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309.

The product of its digits is 6480, while the sum is 33.

The square root of 99258 is about 315.0523765979. The cubic root of 99258 is about 46.3008012525.

Subtracting from 99258 its sum of digits (33), we obtain a square (99225 = 315²).

The spelling of 99258 in words is "ninety-nine thousand, two hundred fifty-eight".