563623423 has 16 divisors (see below), whose sum is σ = 653806080. Its totient is φ = 480188800.

The previous prime is 563623397. The next prime is 563623427. The reversal of 563623423 is 324326365.

It is a de Polignac number, because none of the positive numbers 2^k-563623423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (563623427) 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 in 15 ways as a sum of consecutive naturals, for example, 38388 + ... + 50998.

It is an arithmetic number, because the mean of its divisors is an integer number (40862880).

Almost surely, 2^563623423 is an apocalyptic number.

563623423 is a deficient number, since it is larger than the sum of its proper divisors (90182657).

563623423 is a wasteful number, since it uses less digits than its factorization.

563623423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12878.

The product of its digits is 77760, while the sum is 34.

The square root of 563623423 is about 23740.7544741105. The cubic root of 563623423 is about 826.0309965562.

Adding to 563623423 its reverse (324326365), we get a palindrome (887949788).

The spelling of 563623423 in words is "five hundred sixty-three million, six hundred twenty-three thousand, four hundred twenty-three".