198703 has 4 divisors (see below), whose sum is σ = 203368. Its totient is φ = 194040.

The previous prime is 198701. The next prime is 198719. The reversal of 198703 is 307891.

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 198703 - 2¹ = 198701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2268 + ... + 2353.

It is an arithmetic number, because the mean of its divisors is an integer number (50842).

2¹⁹⁸⁷⁰³ is an apocalyptic number.

198703 is a deficient number, since it is larger than the sum of its proper divisors (4665).

198703 is an equidigital number, since it uses as much as digits as its factorization.

198703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4664.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 198703 is about 445.7611468040. The cubic root of 198703 is about 58.3536654747.

The spelling of 198703 in words is "one hundred ninety-eight thousand, seven hundred three".