198046697 has 2 divisors, whose sum is σ = 198046698. Its totient is φ = 198046696.

The previous prime is 198046679. The next prime is 198046703. The reversal of 198046697 is 796640891.

Together with previous prime (198046679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106729561 + 91317136 = 10331^2 + 9556^2 .

It is an emirp because it is prime and its reverse (796640891) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198046697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198046097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99023348 + 99023349.

It is an arithmetic number, because the mean of its divisors is an integer number (99023349).

Almost surely, 2^198046697 is an apocalyptic number.

It is an amenable number.

198046697 is a deficient number, since it is larger than the sum of its proper divisors (1).

198046697 is an equidigital number, since it uses as much as digits as its factorization.

198046697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 198046697 is about 14072.9064872897. The cubic root of 198046697 is about 582.8934849887.

The spelling of 198046697 in words is "one hundred ninety-eight million, forty-six thousand, six hundred ninety-seven".