198654 has 16 divisors (see below), whose sum is σ = 402192. Its totient is φ = 65408.

The previous prime is 198647. The next prime is 198659. The reversal of 198654 is 456891.

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 198654.

It is not an unprimeable number, because it can be changed into a prime (198659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 532 + ... + 824.

It is an arithmetic number, because the mean of its divisors is an integer number (25137).

2¹⁹⁸⁶⁵⁴ is an apocalyptic number.

198654 is an abundant number, since it is smaller than the sum of its proper divisors (203538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198654 is a wasteful number, since it uses less digits than its factorization.

198654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its digits is 8640, while the sum is 33.

The square root of 198654 is about 445.7061812450. The cubic root of 198654 is about 58.3488684247.

The spelling of 198654 in words is "one hundred ninety-eight thousand, six hundred fifty-four".