11729009 has 2 divisors, whose sum is σ = 11729010. Its totient is φ = 11729008.

The previous prime is 11728973. The next prime is 11729017. The reversal of 11729009 is 90092711.

11729009 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9394225 + 2334784 = 3065^2 + 1528^2 .

It is a cyclic number.

It is not a de Polignac number, because 11729009 - 2²⁰ = 10680433 is a prime.

It is not a weakly prime, because it can be changed into another prime (11729309) 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, 5864504 + 5864505.

It is an arithmetic number, because the mean of its divisors is an integer number (5864505).

Almost surely, 2^11729009 is an apocalyptic number.

It is an amenable number.

11729009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11729009 is an equidigital number, since it uses as much as digits as its factorization.

11729009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 11729009 is about 3424.7640794659. The cubic root of 11729009 is about 227.2063368699.

The spelling of 11729009 in words is "eleven million, seven hundred twenty-nine thousand, nine".