2084009 has 2 divisors, whose sum is σ = 2084010. Its totient is φ = 2084008.

The previous prime is 2084003. The next prime is 2084023. The reversal of 2084009 is 9004802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1968409 + 115600 = 1403^2 + 340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2084009 is a prime.

It is a Chen prime.

It is equal to p₁₅₄₇₁₅ and since 2084009 and 154715 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2084003) 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, 1042004 + 1042005.

It is an arithmetic number, because the mean of its divisors is an integer number (1042005).

2^2084009 is an apocalyptic number.

It is an amenable number.

2084009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2084009 is an equidigital number, since it uses as much as digits as its factorization.

2084009 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 2084009 is about 1443.6097117989. The cubic root of 2084009 is about 127.7320444329.

The spelling of 2084009 in words is "two million, eighty-four thousand, nine".