22666841 has 2 divisors, whose sum is σ = 22666842. Its totient is φ = 22666840.

The previous prime is 22666823. The next prime is 22666849. The reversal of 22666841 is 14866622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15241216 + 7425625 = 3904^2 + 2725^2 .

It is a cyclic number.

It is not a de Polignac number, because 22666841 - 2¹⁴ = 22650457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22666849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11333420 + 11333421.

It is an arithmetic number, because the mean of its divisors is an integer number (11333421).

Almost surely, 2^22666841 is an apocalyptic number.

It is an amenable number.

22666841 is a deficient number, since it is larger than the sum of its proper divisors (1).

22666841 is an equidigital number, since it uses as much as digits as its factorization.

22666841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The square root of 22666841 is about 4760.9705943221. The cubic root of 22666841 is about 283.0068838408.

The spelling of 22666841 in words is "twenty-two million, six hundred sixty-six thousand, eight hundred forty-one".