23423563 has 2 divisors, whose sum is σ = 23423564. Its totient is φ = 23423562.

The previous prime is 23423551. The next prime is 23423567. The reversal of 23423563 is 36532432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23423563 - 2⁹ = 23423051 is a prime.

It is a super-2 number, since 2×23423563² = 1097326607229938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23423567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11711781 + 11711782.

It is an arithmetic number, because the mean of its divisors is an integer number (11711782).

Almost surely, 2^23423563 is an apocalyptic number.

23423563 is a deficient number, since it is larger than the sum of its proper divisors (1).

23423563 is an equidigital number, since it uses as much as digits as its factorization.

23423563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 28.

The square root of 23423563 is about 4839.7895615409. The cubic root of 23423563 is about 286.1218244757.

Adding to 23423563 its reverse (36532432), we get a palindrome (59955995).

The spelling of 23423563 in words is "twenty-three million, four hundred twenty-three thousand, five hundred sixty-three".