198356 has 12 divisors (see below), whose sum is σ = 367668. Its totient is φ = 93312.

The previous prime is 198349. The next prime is 198377. The reversal of 198356 is 653891.

It can be written as a sum of positive squares in 2 ways, for example, as 184900 + 13456 = 430^2 + 116^2 .

It is a congruent number.

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, 1391 + ... + 1526.

It is an arithmetic number, because the mean of its divisors is an integer number (30639).

2¹⁹⁸³⁵⁶ is an apocalyptic number.

It is an amenable number.

198356 is a deficient number, since it is larger than the sum of its proper divisors (169312).

198356 is a wasteful number, since it uses less digits than its factorization.

198356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938 (or 2936 counting only the distinct ones).

The product of its digits is 6480, while the sum is 32.

The square root of 198356 is about 445.3717548296. The cubic root of 198356 is about 58.3196775291.

Subtracting 198356 from its reverse (653891), we obtain a triangular number (455535 = T₉₅₄).

The spelling of 198356 in words is "one hundred ninety-eight thousand, three hundred fifty-six".