563643407 has 2 divisors, whose sum is σ = 563643408. Its totient is φ = 563643406.

The previous prime is 563643403. The next prime is 563643467. The reversal of 563643407 is 704346365.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 563643407 - 2² = 563643403 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (563643403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281821703 + 281821704.

It is an arithmetic number, because the mean of its divisors is an integer number (281821704).

Almost surely, 2^563643407 is an apocalyptic number.

563643407 is a deficient number, since it is larger than the sum of its proper divisors (1).

563643407 is an equidigital number, since it uses as much as digits as its factorization.

563643407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 38.

The square root of 563643407 is about 23741.1753500116. The cubic root of 563643407 is about 826.0407591079.

It can be divided in two parts, 56 and 3643407, that added together give a palindrome (3643463).

The spelling of 563643407 in words is "five hundred sixty-three million, six hundred forty-three thousand, four hundred seven".