109598 has 4 divisors (see below), whose sum is σ = 164400. Its totient is φ = 54798.

The previous prime is 109597. The next prime is 109609. The reversal of 109598 is 895901.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27398 + ... + 27401.

It is an arithmetic number, because the mean of its divisors is an integer number (41100).

2¹⁰⁹⁵⁹⁸ is an apocalyptic number.

109598 is a deficient number, since it is larger than the sum of its proper divisors (54802).

109598 is an equidigital number, since it uses as much as digits as its factorization.

109598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54801.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 109598 is about 331.0558865207. The cubic root of 109598 is about 47.8557591173.

It can be divided in two parts, 109 and 598, that added together give a palindrome (707).

The spelling of 109598 in words is "one hundred nine thousand, five hundred ninety-eight".