397192193 has 2 divisors, whose sum is σ = 397192194. Its totient is φ = 397192192.

The previous prime is 397192183. The next prime is 397192217. The reversal of 397192193 is 391291793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 302168689 + 95023504 = 17383^2 + 9748^2 .

It is a cyclic number.

It is not a de Polignac number, because 397192193 - 2⁸ = 397191937 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (397192153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198596096 + 198596097.

It is an arithmetic number, because the mean of its divisors is an integer number (198596097).

Almost surely, 2^397192193 is an apocalyptic number.

It is an amenable number.

397192193 is a deficient number, since it is larger than the sum of its proper divisors (1).

397192193 is an equidigital number, since it uses as much as digits as its factorization.

397192193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91854, while the sum is 44.

The square root of 397192193 is about 19929.6812066827. The cubic root of 397192193 is about 735.0782417826.

The spelling of 397192193 in words is "three hundred ninety-seven million, one hundred ninety-two thousand, one hundred ninety-three".