586981 has 2 divisors, whose sum is σ = 586982. Its totient is φ = 586980.

The previous prime is 586979. The next prime is 587017. The reversal of 586981 is 189685.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 586756 + 225 = 766^2 + 15^2 .

It is a cyclic number.

It is not a de Polignac number, because 586981 - 2¹ = 586979 is a prime.

It is a super-2 number, since 2×586981² = 689093388722, which contains 22 as substring.

Together with 586979, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 586981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (586921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 293490 + 293491.

It is an arithmetic number, because the mean of its divisors is an integer number (293491).

2⁵⁸⁶⁹⁸¹ is an apocalyptic number.

It is an amenable number.

586981 is a deficient number, since it is larger than the sum of its proper divisors (1).

586981 is an equidigital number, since it uses as much as digits as its factorization.

586981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 37.

The square root of 586981 is about 766.1468527639. The cubic root of 586981 is about 83.7287642008.

The spelling of 586981 in words is "five hundred eighty-six thousand, nine hundred eighty-one".