11067809 has 2 divisors, whose sum is σ = 11067810. Its totient is φ = 11067808.

The previous prime is 11067803. The next prime is 11067811. The reversal of 11067809 is 90876011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8832784 + 2235025 = 2972^2 + 1495^2 .

It is an emirp because it is prime and its reverse (90876011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11067809 is a prime.

Together with 11067811, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11067803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5533904 + 5533905.

It is an arithmetic number, because the mean of its divisors is an integer number (5533905).

Almost surely, 2^11067809 is an apocalyptic number.

It is an amenable number.

11067809 is a deficient number, since it is larger than the sum of its proper divisors (1).

11067809 is an equidigital number, since it uses as much as digits as its factorization.

11067809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 11067809 is about 3326.8316759343. The cubic root of 11067809 is about 222.8540607061.

The spelling of 11067809 in words is "eleven million, sixty-seven thousand, eight hundred nine".