581980943 has 2 divisors, whose sum is σ = 581980944. Its totient is φ = 581980942.

The previous prime is 581980933. The next prime is 581980951. The reversal of 581980943 is 349089185.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-581980943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (581980933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290990471 + 290990472.

It is an arithmetic number, because the mean of its divisors is an integer number (290990472).

Almost surely, 2^581980943 is an apocalyptic number.

581980943 is a deficient number, since it is larger than the sum of its proper divisors (1).

581980943 is an equidigital number, since it uses as much as digits as its factorization.

581980943 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 47.

The square root of 581980943 is about 24124.2811913640. The cubic root of 581980943 is about 834.9034480254.

The spelling of 581980943 in words is "five hundred eighty-one million, nine hundred eighty thousand, nine hundred forty-three".