198874 has 8 divisors (see below), whose sum is σ = 321300. Its totient is φ = 91776.

The previous prime is 198859. The next prime is 198899. The reversal of 198874 is 478891.

It can be written as a sum of positive squares in 2 ways, for example, as 156025 + 42849 = 395^2 + 207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3799 + ... + 3850.

2¹⁹⁸⁸⁷⁴ is an apocalyptic number.

198874 is a deficient number, since it is larger than the sum of its proper divisors (122426).

198874 is a wasteful number, since it uses less digits than its factorization.

198874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7664.

The product of its digits is 16128, while the sum is 37.

The square root of 198874 is about 445.9529123125. The cubic root of 198874 is about 58.3704000245.

It can be divided in two parts, 19887 and 4, that added together give a palindrome (19891).

The spelling of 198874 in words is "one hundred ninety-eight thousand, eight hundred seventy-four".