563838689 has 2 divisors, whose sum is σ = 563838690. Its totient is φ = 563838688.

The previous prime is 563838647. The next prime is 563838697. The reversal of 563838689 is 986838365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419430400 + 144408289 = 20480^2 + 12017^2 .

It is a cyclic number.

It is not a de Polignac number, because 563838689 - 2²⁸ = 295403233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (563838589) 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, 281919344 + 281919345.

It is an arithmetic number, because the mean of its divisors is an integer number (281919345).

Almost surely, 2^563838689 is an apocalyptic number.

It is an amenable number.

563838689 is a deficient number, since it is larger than the sum of its proper divisors (1).

563838689 is an equidigital number, since it uses as much as digits as its factorization.

563838689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 56.

The square root of 563838689 is about 23745.2877219881. The cubic root of 563838689 is about 826.1361458149.

The spelling of 563838689 in words is "five hundred sixty-three million, eight hundred thirty-eight thousand, six hundred eighty-nine".