196398317 has 2 divisors, whose sum is σ = 196398318. Its totient is φ = 196398316.

The previous prime is 196398313. The next prime is 196398343. The reversal of 196398317 is 713893691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102191881 + 94206436 = 10109^2 + 9706^2 .

It is a cyclic number.

It is not a de Polignac number, because 196398317 - 2² = 196398313 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (196398313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98199158 + 98199159.

It is an arithmetic number, because the mean of its divisors is an integer number (98199159).

Almost surely, 2^196398317 is an apocalyptic number.

It is an amenable number.

196398317 is a deficient number, since it is larger than the sum of its proper divisors (1).

196398317 is an equidigital number, since it uses as much as digits as its factorization.

196398317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 244944, while the sum is 47.

The square root of 196398317 is about 14014.2183870525. The cubic root of 196398317 is about 581.2717999763.

The spelling of 196398317 in words is "one hundred ninety-six million, three hundred ninety-eight thousand, three hundred seventeen".