587021 has 2 divisors, whose sum is σ = 587022. Its totient is φ = 587020.

The previous prime is 587017. The next prime is 587033. The reversal of 587021 is 120785.

587021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 346921 + 240100 = 589^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 587021 - 2² = 587017 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 587021.

It is not a weakly prime, because it can be changed into another prime (587051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 293510 + 293511.

It is an arithmetic number, because the mean of its divisors is an integer number (293511).

2⁵⁸⁷⁰²¹ is an apocalyptic number.

It is an amenable number.

587021 is a deficient number, since it is larger than the sum of its proper divisors (1).

587021 is an equidigital number, since it uses as much as digits as its factorization.

587021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 587021 is about 766.1729569751. The cubic root of 587021 is about 83.7306660650.

The spelling of 587021 in words is "five hundred eighty-seven thousand, twenty-one".