580639 has 2 divisors, whose sum is σ = 580640. Its totient is φ = 580638.

The previous prime is 580633. The next prime is 580663. The reversal of 580639 is 936085.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 580639 - 2³ = 580631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 580639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (580631) 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 as a sum of consecutive naturals, namely, 290319 + 290320.

It is an arithmetic number, because the mean of its divisors is an integer number (290320).

2⁵⁸⁰⁶³⁹ is an apocalyptic number.

580639 is a deficient number, since it is larger than the sum of its proper divisors (1).

580639 is an equidigital number, since it uses as much as digits as its factorization.

580639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 580639 is about 761.9967191530. The cubic root of 580639 is about 83.4261241955.

The spelling of 580639 in words is "five hundred eighty thousand, six hundred thirty-nine".