198885 has 8 divisors (see below), whose sum is σ = 318240. Its totient is φ = 106064.

The previous prime is 198859. The next prime is 198899. The reversal of 198885 is 588891.

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

It is a cyclic number.

It is not a de Polignac number, because 198885 - 2¹¹ = 196837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6615 + ... + 6644.

It is an arithmetic number, because the mean of its divisors is an integer number (39780).

2¹⁹⁸⁸⁸⁵ is an apocalyptic number.

198885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

198885 is a deficient number, since it is larger than the sum of its proper divisors (119355).

198885 is a wasteful number, since it uses less digits than its factorization.

198885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13267.

The product of its digits is 23040, while the sum is 39.

The square root of 198885 is about 445.9652452826. The cubic root of 198885 is about 58.3714761876.

The spelling of 198885 in words is "one hundred ninety-eight thousand, eight hundred eighty-five".