4023563 has 2 divisors, whose sum is σ = 4023564. Its totient is φ = 4023562.

The previous prime is 4023533. The next prime is 4023599. The reversal of 4023563 is 3653204.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4023563 - 2¹⁸ = 3761419 is a prime.

It is not a weakly prime, because it can be changed into another prime (4023533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011781 + 2011782.

It is an arithmetic number, because the mean of its divisors is an integer number (2011782).

Almost surely, 2^4023563 is an apocalyptic number.

4023563 is a deficient number, since it is larger than the sum of its proper divisors (1).

4023563 is an equidigital number, since it uses as much as digits as its factorization.

4023563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 4023563 is about 2005.8821002242. The cubic root of 4023563 is about 159.0511945691.

Adding to 4023563 its reverse (3653204), we get a palindrome (7676767).

The spelling of 4023563 in words is "four million, twenty-three thousand, five hundred sixty-three".