590221 has 4 divisors (see below), whose sum is σ = 591772. Its totient is φ = 588672.

The previous prime is 590207. The next prime is 590243. The reversal of 590221 is 122095.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 122095 = 5 ⋅24419.

It can be written as a sum of positive squares in 2 ways, for example, as 354025 + 236196 = 595^2 + 486^2 .

It is a cyclic number.

It is not a de Polignac number, because 590221 - 2¹¹ = 588173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (590201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235 + ... + 1111.

It is an arithmetic number, because the mean of its divisors is an integer number (147943).

2⁵⁹⁰²²¹ is an apocalyptic number.

It is an amenable number.

590221 is a deficient number, since it is larger than the sum of its proper divisors (1551).

590221 is an equidigital number, since it uses as much as digits as its factorization.

590221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 590221 is about 768.2584200645. The cubic root of 590221 is about 83.8825361198.

The spelling of 590221 in words is "five hundred ninety thousand, two hundred twenty-one".