581393 has 2 divisors, whose sum is σ = 581394. Its totient is φ = 581392.

The previous prime is 581377. The next prime is 581407. The reversal of 581393 is 393185.

581393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380689 + 200704 = 617^2 + 448^2 .

It is a cyclic number.

It is not a de Polignac number, because 581393 - 2⁴ = 581377 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 581393.

It is not a weakly prime, because it can be changed into another prime (581303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290696 + 290697.

It is an arithmetic number, because the mean of its divisors is an integer number (290697).

2⁵⁸¹³⁹³ is an apocalyptic number.

It is an amenable number.

581393 is a deficient number, since it is larger than the sum of its proper divisors (1).

581393 is an equidigital number, since it uses as much as digits as its factorization.

581393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 29.

The square root of 581393 is about 762.4913114259. The cubic root of 581393 is about 83.4622201112.

The spelling of 581393 in words is "five hundred eighty-one thousand, three hundred ninety-three".