198982 has 16 divisors (see below), whose sum is σ = 348192. Its totient is φ = 83520.

The previous prime is 198977. The next prime is 198997. The reversal of 198982 is 289891.

198982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 738 + ... + 970.

It is an arithmetic number, because the mean of its divisors is an integer number (21762).

2¹⁹⁸⁹⁸² is an apocalyptic number.

198982 is a deficient number, since it is larger than the sum of its proper divisors (149210).

198982 is a wasteful number, since it uses less digits than its factorization.

198982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303.

The product of its digits is 10368, while the sum is 37.

The square root of 198982 is about 446.0739848949. The cubic root of 198982 is about 58.3809642719.

Subtracting 198982 from its reverse (289891), we obtain a palindrome (90909).

It can be divided in two parts, 19898 and 2, that added together give a triangular number (19900 = T₁₉₉).

The spelling of 198982 in words is "one hundred ninety-eight thousand, nine hundred eighty-two".