198498 has 8 divisors (see below), whose sum is σ = 397008. Its totient is φ = 66164.

The previous prime is 198491. The next prime is 198503. The reversal of 198498 is 894891.

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

198498 is an admirable number.

It is a super-3 number, since 3×198498³ = 23463330641645976, which contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (198491) 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, 16536 + ... + 16547.

It is an arithmetic number, because the mean of its divisors is an integer number (49626).

2¹⁹⁸⁴⁹⁸ is an apocalyptic number.

198498 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198498 is a wasteful number, since it uses less digits than its factorization.

198498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33088.

The product of its digits is 20736, while the sum is 39.

The square root of 198498 is about 445.5311436926. The cubic root of 198498 is about 58.3335909286. Note that the first 3 decimals are identical.

It can be divided in two parts, 198 and 498, that added together give a palindrome (696).

The spelling of 198498 in words is "one hundred ninety-eight thousand, four hundred ninety-eight".