2073209 has 2 divisors, whose sum is σ = 2073210. Its totient is φ = 2073208.

The previous prime is 2073199. The next prime is 2073233. The reversal of 2073209 is 9023702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1345600 + 727609 = 1160^2 + 853^2 .

It is a cyclic number.

It is not a de Polignac number, because 2073209 - 2⁴ = 2073193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2073809) 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, 1036604 + 1036605.

It is an arithmetic number, because the mean of its divisors is an integer number (1036605).

2^2073209 is an apocalyptic number.

It is an amenable number.

2073209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2073209 is an equidigital number, since it uses as much as digits as its factorization.

2073209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 2073209 is about 1439.8642297106. The cubic root of 2073209 is about 127.5110127614.

The spelling of 2073209 in words is "two million, seventy-three thousand, two hundred nine".