198562 has 16 divisors (see below), whose sum is σ = 366912. Its totient is φ = 78480.

The previous prime is 198553. The next prime is 198571. The reversal of 198562 is 265891.

It is an interprime number because it is at equal distance from previous prime (198553) and next prime (198571).

It is an unprimeable number.

198562 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364 + ... + 727.

It is an arithmetic number, because the mean of its divisors is an integer number (22932).

2¹⁹⁸⁵⁶² is an apocalyptic number.

198562 is the 364-th pentagonal number.

198562 is a deficient number, since it is larger than the sum of its proper divisors (168350).

198562 is a wasteful number, since it uses less digits than its factorization.

198562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113.

The product of its digits is 4320, while the sum is 31.

The square root of 198562 is about 445.6029622882. The cubic root of 198562 is about 58.3398595873.

The spelling of 198562 in words is "one hundred ninety-eight thousand, five hundred sixty-two".