23563423 has 4 divisors (see below), whose sum is σ = 25376008. Its totient is φ = 21750840.

The previous prime is 23563349. The next prime is 23563469. The reversal of 23563423 is 32436532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23563423 - 2⁹ = 23562911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23563391 and 23563400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23563483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906273 + ... + 906298.

It is an arithmetic number, because the mean of its divisors is an integer number (6344002).

Almost surely, 2^23563423 is an apocalyptic number.

23563423 is a deficient number, since it is larger than the sum of its proper divisors (1812585).

23563423 is a wasteful number, since it uses less digits than its factorization.

23563423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812584.

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

The square root of 23563423 is about 4854.2170326429. The cubic root of 23563423 is about 286.6901640796.

Adding to 23563423 its reverse (32436532), we get a palindrome (55999955).

The spelling of 23563423 in words is "twenty-three million, five hundred sixty-three thousand, four hundred twenty-three".