198353 has 4 divisors (see below), whose sum is σ = 199920. Its totient is φ = 196788.

The previous prime is 198349. The next prime is 198377. The reversal of 198353 is 353891.

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.

It is a cyclic number.

It is not a de Polignac number, because 198353 - 2² = 198349 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198313) 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, 575 + ... + 852.

It is an arithmetic number, because the mean of its divisors is an integer number (49980).

2¹⁹⁸³⁵³ is an apocalyptic number.

It is an amenable number.

198353 is a deficient number, since it is larger than the sum of its proper divisors (1567).

198353 is a wasteful number, since it uses less digits than its factorization.

198353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1566.

The product of its digits is 3240, while the sum is 29.

The square root of 198353 is about 445.3683868440. The cubic root of 198353 is about 58.3193835124.

The spelling of 198353 in words is "one hundred ninety-eight thousand, three hundred fifty-three".