2076209 has 2 divisors, whose sum is σ = 2076210. Its totient is φ = 2076208.

The previous prime is 2076161. The next prime is 2076229. The reversal of 2076209 is 9026702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2002225 + 73984 = 1415^2 + 272^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2076209 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2076229) 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, 1038104 + 1038105.

It is an arithmetic number, because the mean of its divisors is an integer number (1038105).

2^2076209 is an apocalyptic number.

It is an amenable number.

2076209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2076209 is an equidigital number, since it uses as much as digits as its factorization.

2076209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 2076209 is about 1440.9056180056. The cubic root of 2076209 is about 127.5724872958.

The spelling of 2076209 in words is "two million, seventy-six thousand, two hundred nine".