566409197 has 2 divisors, whose sum is σ = 566409198. Its totient is φ = 566409196.

The previous prime is 566409169. The next prime is 566409203. The reversal of 566409197 is 791904665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 436768201 + 129640996 = 20899^2 + 11386^2 .

It is a cyclic number.

It is not a de Polignac number, because 566409197 - 2¹² = 566405101 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 (566409127) 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, 283204598 + 283204599.

It is an arithmetic number, because the mean of its divisors is an integer number (283204599).

Almost surely, 2^566409197 is an apocalyptic number.

It is an amenable number.

566409197 is a deficient number, since it is larger than the sum of its proper divisors (1).

566409197 is an equidigital number, since it uses as much as digits as its factorization.

566409197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 566409197 is about 23799.3528693534. The cubic root of 566409197 is about 827.3896784621.

The spelling of 566409197 in words is "five hundred sixty-six million, four hundred nine thousand, one hundred ninety-seven".