99398 has 8 divisors (see below), whose sum is σ = 160608. Its totient is φ = 45864.

The previous prime is 99397. The next prime is 99401. The reversal of 99398 is 89399.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886 + ... + 1937.

It is an arithmetic number, because the mean of its divisors is an integer number (20076).

2⁹⁹³⁹⁸ is an apocalyptic number.

99398 is a deficient number, since it is larger than the sum of its proper divisors (61210).

99398 is a wasteful number, since it uses less digits than its factorization.

99398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838.

The product of its digits is 17496, while the sum is 38.

The square root of 99398 is about 315.2744835853. The cubic root of 99398 is about 46.3225595892.

Subtracting from 99398 its reverse (89399), we obtain a palindrome (9999).

The spelling of 99398 in words is "ninety-nine thousand, three hundred ninety-eight".