99498 has 32 divisors (see below), whose sum is σ = 239616. Its totient is φ = 26928.

The previous prime is 99497. The next prime is 99523. The reversal of 99498 is 89499.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 915 + ... + 1017.

It is an arithmetic number, because the mean of its divisors is an integer number (7488).

2⁹⁹⁴⁹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99498, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119808).

99498 is an abundant number, since it is smaller than the sum of its proper divisors (140118).

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

99498 is a wasteful number, since it uses less digits than its factorization.

99498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138.

The product of its digits is 23328, while the sum is 39.

The square root of 99498 is about 315.4330356827. The cubic root of 99498 is about 46.3380887527.

Subtracting from 99498 its reverse (89499), we obtain a palindrome (9999).

The spelling of 99498 in words is "ninety-nine thousand, four hundred ninety-eight".