423036563 has 2 divisors, whose sum is σ = 423036564. Its totient is φ = 423036562.

The previous prime is 423036527. The next prime is 423036587. The reversal of 423036563 is 365630324.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 423036563 - 2⁸ = 423036307 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (423036763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211518281 + 211518282.

It is an arithmetic number, because the mean of its divisors is an integer number (211518282).

Almost surely, 2^423036563 is an apocalyptic number.

423036563 is a deficient number, since it is larger than the sum of its proper divisors (1).

423036563 is an equidigital number, since it uses as much as digits as its factorization.

423036563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 32.

The square root of 423036563 is about 20567.8526589433. The cubic root of 423036563 is about 750.6877028566.

Adding to 423036563 its reverse (365630324), we get a palindrome (788666887).

The spelling of 423036563 in words is "four hundred twenty-three million, thirty-six thousand, five hundred sixty-three".