2085289 has 2 divisors, whose sum is σ = 2085290. Its totient is φ = 2085288.

The previous prime is 2085287. The next prime is 2085299. The reversal of 2085289 is 9825802.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1669264 + 416025 = 1292^2 + 645^2 .

It is a cyclic number.

It is not a de Polignac number, because 2085289 - 2¹ = 2085287 is a prime.

Together with 2085287, it forms a pair of twin primes.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2085287) 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, 1042644 + 1042645.

It is an arithmetic number, because the mean of its divisors is an integer number (1042645).

2^2085289 is an apocalyptic number.

It is an amenable number.

2085289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085289 is an equidigital number, since it uses as much as digits as its factorization.

2085289 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 2085289 is about 1444.0529768675. The cubic root of 2085289 is about 127.7581901222.

The spelling of 2085289 in words is "two million, eighty-five thousand, two hundred eighty-nine".