41366609 has 2 divisors, whose sum is σ = 41366610. Its totient is φ = 41366608.

The previous prime is 41366603. The next prime is 41366623. The reversal of 41366609 is 90666314.

41366609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23961025 + 17405584 = 4895^2 + 4172^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-41366609 is a prime.

It is a super-2 number, since 2×41366609² = 3422392680317762, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (41366603) 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, 20683304 + 20683305.

It is an arithmetic number, because the mean of its divisors is an integer number (20683305).

Almost surely, 2^41366609 is an apocalyptic number.

It is an amenable number.

41366609 is a deficient number, since it is larger than the sum of its proper divisors (1).

41366609 is an equidigital number, since it uses as much as digits as its factorization.

41366609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 41366609 is about 6431.6878811087. The cubic root of 41366609 is about 345.8464380318.

The spelling of 41366609 in words is "forty-one million, three hundred sixty-six thousand, six hundred nine".