198683 has 4 divisors (see below), whose sum is σ = 209160. Its totient is φ = 188208.

The previous prime is 198673. The next prime is 198689. The reversal of 198683 is 386891.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 198683 - 2⁸ = 198427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198689) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5210 + ... + 5247.

It is an arithmetic number, because the mean of its divisors is an integer number (52290).

2¹⁹⁸⁶⁸³ is an apocalyptic number.

198683 is a deficient number, since it is larger than the sum of its proper divisors (10477).

198683 is a wasteful number, since it uses less digits than its factorization.

198683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10476.

The product of its digits is 10368, while the sum is 35.

The square root of 198683 is about 445.7387127006. The cubic root of 198683 is about 58.3517075904.

The spelling of 198683 in words is "one hundred ninety-eight thousand, six hundred eighty-three".