23564741 has 2 divisors, whose sum is σ = 23564742. Its totient is φ = 23564740.

The previous prime is 23564713. The next prime is 23564753. The reversal of 23564741 is 14746532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22287841 + 1276900 = 4721^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 23564741 - 2⁶ = 23564677 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23564698 and 23564707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23564341) 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 as a sum of consecutive naturals, namely, 11782370 + 11782371.

It is an arithmetic number, because the mean of its divisors is an integer number (11782371).

Almost surely, 2^23564741 is an apocalyptic number.

It is an amenable number.

23564741 is a deficient number, since it is larger than the sum of its proper divisors (1).

23564741 is an equidigital number, since it uses as much as digits as its factorization.

23564741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 23564741 is about 4854.3527889926. The cubic root of 23564741 is about 286.6955092366.

The spelling of 23564741 in words is "twenty-three million, five hundred sixty-four thousand, seven hundred forty-one".