581860841 has 4 divisors (see below), whose sum is σ = 581913684. Its totient is φ = 581808000.

The previous prime is 581860837. The next prime is 581860849. The reversal of 581860841 is 148068185.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 338376025 + 243484816 = 18395^2 + 15604^2 .

It is a cyclic number.

It is not a de Polignac number, because 581860841 - 2² = 581860837 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (581860849) 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, 2960 + ... + 34241.

It is an arithmetic number, because the mean of its divisors is an integer number (145478421).

Almost surely, 2^581860841 is an apocalyptic number.

It is an amenable number.

581860841 is a deficient number, since it is larger than the sum of its proper divisors (52843).

581860841 is a wasteful number, since it uses less digits than its factorization.

581860841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52842.

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 581860841 is about 24121.7918281375. The cubic root of 581860841 is about 834.8460117390.

The spelling of 581860841 in words is "five hundred eighty-one million, eight hundred sixty thousand, eight hundred forty-one".