986055589 has 2 divisors, whose sum is σ = 986055590. Its totient is φ = 986055588.

The previous prime is 986055571. The next prime is 986055599. The reversal of 986055589 is 985550689.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 959450625 + 26604964 = 30975^2 + 5158^2 .

It is an emirp because it is prime and its reverse (985550689) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 986055589 - 2¹³ = 986047397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (986055599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 493027794 + 493027795.

It is an arithmetic number, because the mean of its divisors is an integer number (493027795).

Almost surely, 2^986055589 is an apocalyptic number.

It is an amenable number.

986055589 is a deficient number, since it is larger than the sum of its proper divisors (1).

986055589 is an equidigital number, since it uses as much as digits as its factorization.

986055589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888000, while the sum is 55.

The square root of 986055589 is about 31401.5220809438. The cubic root of 986055589 is about 995.3300888774.

The spelling of 986055589 in words is "nine hundred eighty-six million, fifty-five thousand, five hundred eighty-nine".