197089 has 2 divisors, whose sum is σ = 197090. Its totient is φ = 197088.

The previous prime is 197083. The next prime is 197101. The reversal of 197089 is 980791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166464 + 30625 = 408^2 + 175^2 .

It is a cyclic number.

It is not a de Polignac number, because 197089 - 2⁷ = 196961 is a prime.

It is not a weakly prime, because it can be changed into another prime (197083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98544 + 98545.

It is an arithmetic number, because the mean of its divisors is an integer number (98545).

2¹⁹⁷⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

197089 is a deficient number, since it is larger than the sum of its proper divisors (1).

197089 is an equidigital number, since it uses as much as digits as its factorization.

197089 is an odious number, because the sum of its binary digits is odd.

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

The square root of 197089 is about 443.9470689170. The cubic root of 197089 is about 58.1952397865.

The spelling of 197089 in words is "one hundred ninety-seven thousand, eighty-nine".