198835 has 32 divisors (see below), whose sum is σ = 322560. Its totient is φ = 114048.

The previous prime is 198833. The next prime is 198839. The reversal of 198835 is 538891.

198835 = 53² + 54² + ... + 90².

It is a cyclic number.

It is not a de Polignac number, because 198835 - 2¹ = 198833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198835.

It is not an unprimeable number, because it can be changed into a prime (198833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8634 + ... + 8656.

It is an arithmetic number, because the mean of its divisors is an integer number (10080).

2¹⁹⁸⁸³⁵ is an apocalyptic number.

198835 is a deficient number, since it is larger than the sum of its proper divisors (123725).

198835 is a wasteful number, since it uses less digits than its factorization.

198835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67.

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

The square root of 198835 is about 445.9091835789. The cubic root of 198835 is about 58.3665842175.

The spelling of 198835 in words is "one hundred ninety-eight thousand, eight hundred thirty-five".