2089859 has 2 divisors, whose sum is σ = 2089860. Its totient is φ = 2089858.

The previous prime is 2089853. The next prime is 2089873. The reversal of 2089859 is 9589802.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2089859 - 2²⁰ = 1041283 is a prime.

It is a zygodrome in base 2.

It is not a weakly prime, because it can be changed into another prime (2089853) 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, 1044929 + 1044930.

It is an arithmetic number, because the mean of its divisors is an integer number (1044930).

2^2089859 is an apocalyptic number.

2089859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2089859 is an equidigital number, since it uses as much as digits as its factorization.

2089859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 2089859 is about 1445.6344627879. The cubic root of 2089859 is about 127.8514512054.

The spelling of 2089859 in words is "two million, eighty-nine thousand, eight hundred fifty-nine".