99598 has 8 divisors (see below), whose sum is σ = 157320. Its totient is φ = 47160.

The previous prime is 99581. The next prime is 99607. The reversal of 99598 is 89599.

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

It is a self number, because there is not a number n which added to its sum of digits gives 99598.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1273 + ... + 1348.

It is an arithmetic number, because the mean of its divisors is an integer number (19665).

2⁹⁹⁵⁹⁸ is an apocalyptic number.

99598 is a deficient number, since it is larger than the sum of its proper divisors (57722).

99598 is a wasteful number, since it uses less digits than its factorization.

99598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2642.

The product of its digits is 29160, while the sum is 40.

The square root of 99598 is about 315.5915081240. The cubic root of 99598 is about 46.3536075148.

Subtracting from 99598 its reverse (89599), we obtain a palindrome (9999).

The spelling of 99598 in words is "ninety-nine thousand, five hundred ninety-eight".