580721 has 4 divisors (see below), whose sum is σ = 591732. Its totient is φ = 569712.

The previous prime is 580717. The next prime is 580733. The reversal of 580721 is 127085.

580721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 390625 + 190096 = 625^2 + 436^2 .

It is a cyclic number.

It is not a de Polignac number, because 580721 - 2² = 580717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (580711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5426 + ... + 5531.

It is an arithmetic number, because the mean of its divisors is an integer number (147933).

2⁵⁸⁰⁷²¹ is an apocalyptic number.

It is an amenable number.

580721 is a deficient number, since it is larger than the sum of its proper divisors (11011).

580721 is a wasteful number, since it uses less digits than its factorization.

580721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11010.

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

The square root of 580721 is about 762.0505232594. The cubic root of 580721 is about 83.4300512598.

The spelling of 580721 in words is "five hundred eighty thousand, seven hundred twenty-one".