2822009 has 2 divisors, whose sum is σ = 2822010. Its totient is φ = 2822008.

The previous prime is 2822003. The next prime is 2822011. The reversal of 2822009 is 9002282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2805625 + 16384 = 1675^2 + 128^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2822009 is a prime.

Together with 2822011, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2822003) 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, 1411004 + 1411005.

It is an arithmetic number, because the mean of its divisors is an integer number (1411005).

2^2822009 is an apocalyptic number.

It is an amenable number.

2822009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2822009 is an equidigital number, since it uses as much as digits as its factorization.

2822009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2822009 is about 1679.8836269218. The cubic root of 2822009 is about 141.3143064800.

The spelling of 2822009 in words is "two million, eight hundred twenty-two thousand, nine".