580991 has 4 divisors (see below), whose sum is σ = 582672. Its totient is φ = 579312.

The previous prime is 580981. The next prime is 580997. The reversal of 580991 is 199085.

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

It is a cyclic number.

It is not a de Polignac number, because 580991 - 2⁶ = 580927 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 (580997) 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, 110 + ... + 1083.

It is an arithmetic number, because the mean of its divisors is an integer number (145668).

2⁵⁸⁰⁹⁹¹ is an apocalyptic number.

580991 is a deficient number, since it is larger than the sum of its proper divisors (1681).

580991 is a wasteful number, since it uses less digits than its factorization.

580991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 580991 is about 762.2276562812. The cubic root of 580991 is about 83.4429792256.

The spelling of 580991 in words is "five hundred eighty thousand, nine hundred ninety-one".