23643023 has 4 divisors (see below), whose sum is σ = 23677080. Its totient is φ = 23608968.

The previous prime is 23643017. The next prime is 23643047. The reversal of 23643023 is 32034632.

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 23643023 - 2⁴ = 23643007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23643023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23643523) 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 in 3 ways as a sum of consecutive naturals, for example, 15965 + ... + 17382.

It is an arithmetic number, because the mean of its divisors is an integer number (5919270).

Almost surely, 2^23643023 is an apocalyptic number.

23643023 is a deficient number, since it is larger than the sum of its proper divisors (34057).

23643023 is an equidigital number, since it uses as much as digits as its factorization.

23643023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34056.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 23643023 is about 4862.4091765297. The cubic root of 23643023 is about 287.0126255539.

Adding to 23643023 its reverse (32034632), we get a palindrome (55677655).

The spelling of 23643023 in words is "twenty-three million, six hundred forty-three thousand, twenty-three".