198695 has 12 divisors (see below), whose sum is σ = 277704. Its totient is φ = 136080.

The previous prime is 198689. The next prime is 198701. The reversal of 198695 is 596891.

It is an interprime number because it is at equal distance from previous prime (198689) and next prime (198701).

It is not a de Polignac number, because 198695 - 2⁸ = 198439 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 198695.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161 + ... + 650.

It is an arithmetic number, because the mean of its divisors is an integer number (23142).

2¹⁹⁸⁶⁹⁵ is an apocalyptic number.

198695 is a deficient number, since it is larger than the sum of its proper divisors (79009).

198695 is an equidigital number, since it uses as much as digits as its factorization.

198695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830 (or 823 counting only the distinct ones).

The product of its digits is 19440, while the sum is 38.

The square root of 198695 is about 445.7521732981. The cubic root of 198695 is about 58.3528823368.

The spelling of 198695 in words is "one hundred ninety-eight thousand, six hundred ninety-five".