11663009 has 2 divisors, whose sum is σ = 11663010. Its totient is φ = 11663008.

The previous prime is 11662997. The next prime is 11663011. The reversal of 11663009 is 90036611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11662225 + 784 = 3415^2 + 28^2 .

It is a cyclic number.

It is not a de Polignac number, because 11663009 - 2⁴ = 11662993 is a prime.

It is a Sophie Germain prime.

Together with 11663011, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11663039) 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, 5831504 + 5831505.

It is an arithmetic number, because the mean of its divisors is an integer number (5831505).

Almost surely, 2^11663009 is an apocalyptic number.

It is an amenable number.

11663009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11663009 is an equidigital number, since it uses as much as digits as its factorization.

11663009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 11663009 is about 3415.1147857722. The cubic root of 11663009 is about 226.7793660535.

The spelling of 11663009 in words is "eleven million, six hundred sixty-three thousand, nine".