11009447 has 2 divisors, whose sum is σ = 11009448. Its totient is φ = 11009446.

The previous prime is 11009429. The next prime is 11009501. The reversal of 11009447 is 74490011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11009447 - 2⁸ = 11009191 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11009407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5504723 + 5504724.

It is an arithmetic number, because the mean of its divisors is an integer number (5504724).

Almost surely, 2^11009447 is an apocalyptic number.

11009447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11009447 is an equidigital number, since it uses as much as digits as its factorization.

11009447 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 11009447 is about 3318.0486735429. The cubic root of 11009447 is about 222.4616573242.

Adding to 11009447 its reverse (74490011), we get a palindrome (85499458).

The spelling of 11009447 in words is "eleven million, nine thousand, four hundred forty-seven".