23712223 has 2 divisors, whose sum is σ = 23712224. Its totient is φ = 23712222.

The previous prime is 23712217. The next prime is 23712233. The reversal of 23712223 is 32221732.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23712223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23712194 and 23712203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23712203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11856111 + 11856112.

It is an arithmetic number, because the mean of its divisors is an integer number (11856112).

Almost surely, 2^23712223 is an apocalyptic number.

23712223 is a deficient number, since it is larger than the sum of its proper divisors (1).

23712223 is an equidigital number, since it uses as much as digits as its factorization.

23712223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 22.

The square root of 23712223 is about 4869.5197915195. The cubic root of 23712223 is about 287.2923688003.

Adding to 23712223 its reverse (32221732), we get a palindrome (55933955).

The spelling of 23712223 in words is "twenty-three million, seven hundred twelve thousand, two hundred twenty-three".