198097 has 2 divisors, whose sum is σ = 198098. Its totient is φ = 198096.

The previous prime is 198091. The next prime is 198109. The reversal of 198097 is 790891.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197136 + 961 = 444^2 + 31^2 .

It is a cyclic number.

It is not a de Polignac number, because 198097 - 2⁷ = 197969 is a prime.

It is not a weakly prime, because it can be changed into another prime (198091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99048 + 99049.

It is an arithmetic number, because the mean of its divisors is an integer number (99049).

2¹⁹⁸⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

198097 is a deficient number, since it is larger than the sum of its proper divisors (1).

198097 is an equidigital number, since it uses as much as digits as its factorization.

198097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 198097 is about 445.0808915242. The cubic root of 198097 is about 58.2942831615.

The spelling of 198097 in words is "one hundred ninety-eight thousand, ninety-seven".