581338873 has 2 divisors, whose sum is σ = 581338874. Its totient is φ = 581338872.

The previous prime is 581338867. The next prime is 581338897. The reversal of 581338873 is 378833185.

581338873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 336979449 + 244359424 = 18357^2 + 15632^2 .

It is a cyclic number.

It is not a de Polignac number, because 581338873 - 2⁹ = 581338361 is a prime.

It is not a weakly prime, because it can be changed into another prime (581338853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290669436 + 290669437.

It is an arithmetic number, because the mean of its divisors is an integer number (290669437).

Almost surely, 2^581338873 is an apocalyptic number.

It is an amenable number.

581338873 is a deficient number, since it is larger than the sum of its proper divisors (1).

581338873 is an equidigital number, since it uses as much as digits as its factorization.

581338873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 581338873 is about 24110.9699721932. The cubic root of 581338873 is about 834.5962995282.

The spelling of 581338873 in words is "five hundred eighty-one million, three hundred thirty-eight thousand, eight hundred seventy-three".