563426887 has 2 divisors, whose sum is σ = 563426888. Its totient is φ = 563426886.

The previous prime is 563426881. The next prime is 563426933. The reversal of 563426887 is 788624365.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 563426887 - 2¹¹ = 563424839 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 563426887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563426881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281713443 + 281713444.

It is an arithmetic number, because the mean of its divisors is an integer number (281713444).

Almost surely, 2^563426887 is an apocalyptic number.

563426887 is a deficient number, since it is larger than the sum of its proper divisors (1).

563426887 is an equidigital number, since it uses as much as digits as its factorization.

563426887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1935360, while the sum is 49.

The square root of 563426887 is about 23736.6149018768. The cubic root of 563426887 is about 825.9349728077.

The spelling of 563426887 in words is "five hundred sixty-three million, four hundred twenty-six thousand, eight hundred eighty-seven".