99898 has 8 divisors (see below), whose sum is σ = 151200. Its totient is φ = 49500.

The previous prime is 99881. The next prime is 99901. The reversal of 99898 is 89899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×99898² = 19959220808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 273 + ... + 523.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2⁹⁹⁸⁹⁸ is an apocalyptic number.

99898 is a deficient number, since it is larger than the sum of its proper divisors (51302).

99898 is a wasteful number, since it uses less digits than its factorization.

99898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452.

The product of its digits is 46656, while the sum is 43.

The square root of 99898 is about 316.0664487098. The cubic root of 99898 is about 46.4001015654.

Subtracting from 99898 its reverse (89899), we obtain a palindrome (9999).

The spelling of 99898 in words is "ninety-nine thousand, eight hundred ninety-eight".