23938223 has 4 divisors (see below), whose sum is σ = 24585240. Its totient is φ = 23291208.

The previous prime is 23938217. The next prime is 23938237. The reversal of 23938223 is 32283932.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23938223 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 23938223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23938283) 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, 323453 + ... + 323526.

It is an arithmetic number, because the mean of its divisors is an integer number (6146310).

Almost surely, 2^23938223 is an apocalyptic number.

23938223 is a deficient number, since it is larger than the sum of its proper divisors (647017).

23938223 is an equidigital number, since it uses as much as digits as its factorization.

23938223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647016.

The product of its digits is 15552, while the sum is 32.

The square root of 23938223 is about 4892.6703342858. The cubic root of 23938223 is about 288.2022073715.

The spelling of 23938223 in words is "twenty-three million, nine hundred thirty-eight thousand, two hundred twenty-three".