2889209 has 2 divisors, whose sum is σ = 2889210. Its totient is φ = 2889208.

The previous prime is 2889181. The next prime is 2889217. The reversal of 2889209 is 9029882.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2706025 + 183184 = 1645^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 2889209 - 2⁸ = 2888953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2885209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1444604 + 1444605.

It is an arithmetic number, because the mean of its divisors is an integer number (1444605).

2^2889209 is an apocalyptic number.

It is an amenable number.

2889209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2889209 is an equidigital number, since it uses as much as digits as its factorization.

2889209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 2889209 is about 1699.7673370200. The cubic root of 2889209 is about 142.4272163451.

The spelling of 2889209 in words is "two million, eight hundred eighty-nine thousand, two hundred nine".