587989 has 2 divisors, whose sum is σ = 587990. Its totient is φ = 587988.

The previous prime is 587987. The next prime is 587999. The reversal of 587989 is 989785.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 378225 + 209764 = 615^2 + 458^2 .

It is a cyclic number.

It is not a de Polignac number, because 587989 - 2¹ = 587987 is a prime.

Together with 587987, it forms a pair of twin primes.

It is a Chen prime.

587989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (587987) 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, 293994 + 293995.

It is an arithmetic number, because the mean of its divisors is an integer number (293995).

2⁵⁸⁷⁹⁸⁹ is an apocalyptic number.

It is an amenable number.

587989 is a deficient number, since it is larger than the sum of its proper divisors (1).

587989 is an equidigital number, since it uses as much as digits as its factorization.

587989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 46.

The square root of 587989 is about 766.8044079164. The cubic root of 587989 is about 83.7766648590.

The spelling of 587989 in words is "five hundred eighty-seven thousand, nine hundred eighty-nine".