11473309 has 2 divisors, whose sum is σ = 11473310. Its totient is φ = 11473308.

The previous prime is 11473291. The next prime is 11473313. The reversal of 11473309 is 90337411.

11473309 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., 10381284 + 1092025 = 3222^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 11473309 - 2¹⁷ = 11342237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11473349) 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, 5736654 + 5736655.

It is an arithmetic number, because the mean of its divisors is an integer number (5736655).

Almost surely, 2^11473309 is an apocalyptic number.

It is an amenable number.

11473309 is a deficient number, since it is larger than the sum of its proper divisors (1).

11473309 is an equidigital number, since it uses as much as digits as its factorization.

11473309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 11473309 is about 3387.2273321996. The cubic root of 11473309 is about 225.5431093764.

The spelling of 11473309 in words is "eleven million, four hundred seventy-three thousand, three hundred nine".