198385 has 8 divisors (see below), whose sum is σ = 259776. Its totient is φ = 144240.

The previous prime is 198377. The next prime is 198391. The reversal of 198385 is 583891.

198385 is nontrivially palindromic in base 14.

198385 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 198385 - 2³ = 198377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198385.

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, 1749 + ... + 1858.

It is an arithmetic number, because the mean of its divisors is an integer number (32472).

2¹⁹⁸³⁸⁵ is an apocalyptic number.

It is an amenable number.

198385 is a deficient number, since it is larger than the sum of its proper divisors (61391).

198385 is a wasteful number, since it uses less digits than its factorization.

198385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3623.

The product of its digits is 8640, while the sum is 34.

The square root of 198385 is about 445.4043107111. The cubic root of 198385 is about 58.3225195374.

Adding to 198385 its product of digits (8640), we get a square (207025 = 455²).

The spelling of 198385 in words is "one hundred ninety-eight thousand, three hundred eighty-five".