198893 has 4 divisors (see below), whose sum is σ = 200928. Its totient is φ = 196860.

The previous prime is 198859. The next prime is 198899. The reversal of 198893 is 398891.

198893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 398891 = 239 ⋅1669.

It is a cyclic number.

It is not a de Polignac number, because 198893 - 2⁶ = 198829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 198893.

It is not an unprimeable number, because it can be changed into a prime (198899) 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, 863 + ... + 1068.

It is an arithmetic number, because the mean of its divisors is an integer number (50232).

2¹⁹⁸⁸⁹³ is an apocalyptic number.

It is an amenable number.

198893 is a deficient number, since it is larger than the sum of its proper divisors (2035).

198893 is a wasteful number, since it uses less digits than its factorization.

198893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2034.

The product of its digits is 15552, while the sum is 38.

The square root of 198893 is about 445.9742145012. The cubic root of 198893 is about 58.3722588267.

The spelling of 198893 in words is "one hundred ninety-eight thousand, eight hundred ninety-three".