2806663589 has 2 divisors, whose sum is σ = 2806663590. Its totient is φ = 2806663588.

The previous prime is 2806663577. The next prime is 2806663591. The reversal of 2806663589 is 9853666082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2418967489 + 387696100 = 49183^2 + 19690^2 .

It is a cyclic number.

It is not a de Polignac number, because 2806663589 - 2²⁰ = 2805615013 is a prime.

Together with 2806663591, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2806663589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2806660589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1403331794 + 1403331795.

It is an arithmetic number, because the mean of its divisors is an integer number (1403331795).

Almost surely, 2^2806663589 is an apocalyptic number.

It is an amenable number.

2806663589 is a deficient number, since it is larger than the sum of its proper divisors (1).

2806663589 is an equidigital number, since it uses as much as digits as its factorization.

2806663589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The square root of 2806663589 is about 52977.9538015579. The cubic root of 2806663589 is about 1410.5769630466.

The spelling of 2806663589 in words is "two billion, eight hundred six million, six hundred sixty-three thousand, five hundred eighty-nine".