580921 has 6 divisors (see below), whose sum is σ = 638666. Its totient is φ = 528000.

The previous prime is 580919. The next prime is 580927. The reversal of 580921 is 129085.

It can be written as a sum of positive squares in only one way, i.e., 511225 + 69696 = 715^2 + 264^2 .

It is not a de Polignac number, because 580921 - 2¹ = 580919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (580927) 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 in 5 ways as a sum of consecutive naturals, for example, 2280 + ... + 2521.

2⁵⁸⁰⁹²¹ is an apocalyptic number.

It is an amenable number.

580921 is a deficient number, since it is larger than the sum of its proper divisors (57745).

580921 is a wasteful number, since it uses less digits than its factorization.

580921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4823 (or 4812 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 580921 is about 762.1817368581. The cubic root of 580921 is about 83.4396279155.

The spelling of 580921 in words is "five hundred eighty thousand, nine hundred twenty-one".