2885209 has 2 divisors, whose sum is σ = 2885210. Its totient is φ = 2885208.

The previous prime is 2885203. The next prime is 2885219. The reversal of 2885209 is 9025882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2250000 + 635209 = 1500^2 + 797^2 .

It is a cyclic number.

It is not a de Polignac number, because 2885209 - 2⁵ = 2885177 is a prime.

It is a plaindrome in base 7.

It is a zygodrome in base 7.

It is not a weakly prime, because it can be changed into another prime (2885203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1442604 + 1442605.

It is an arithmetic number, because the mean of its divisors is an integer number (1442605).

2^2885209 is an apocalyptic number.

It is an amenable number.

2885209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2885209 is an equidigital number, since it uses as much as digits as its factorization.

2885209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2885209 is about 1698.5902978647. The cubic root of 2885209 is about 142.3614576338.

The spelling of 2885209 in words is "two million, eight hundred eighty-five thousand, two hundred nine".