23566423 has 2 divisors, whose sum is σ = 23566424. Its totient is φ = 23566422.

The previous prime is 23566409. The next prime is 23566427. The reversal of 23566423 is 32466532.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23566423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23566427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11783211 + 11783212.

It is an arithmetic number, because the mean of its divisors is an integer number (11783212).

Almost surely, 2^23566423 is an apocalyptic number.

23566423 is a deficient number, since it is larger than the sum of its proper divisors (1).

23566423 is an equidigital number, since it uses as much as digits as its factorization.

23566423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 31.

The square root of 23566423 is about 4854.5260324773. The cubic root of 23566423 is about 286.7023303085.

The spelling of 23566423 in words is "twenty-three million, five hundred sixty-six thousand, four hundred twenty-three".