199598 has 16 divisors (see below), whose sum is σ = 349920. Its totient is φ = 83616.

The previous prime is 199583. The next prime is 199601. The reversal of 199598 is 895991.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

199598 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 608 + ... + 876.

It is an arithmetic number, because the mean of its divisors is an integer number (21870).

2¹⁹⁹⁵⁹⁸ is an apocalyptic number.

199598 is a deficient number, since it is larger than the sum of its proper divisors (150322).

199598 is a wasteful number, since it uses less digits than its factorization.

199598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331.

The product of its digits is 29160, while the sum is 41.

The square root of 199598 is about 446.7639197608. The cubic root of 199598 is about 58.4411466454.

It can be divided in two parts, 199 and 598, that added together give a palindrome (797).

The spelling of 199598 in words is "one hundred ninety-nine thousand, five hundred ninety-eight".