5861 has 2 divisors, whose sum is σ = 5862. Its totient is φ = 5860.

The previous prime is 5857. The next prime is 5867. The reversal of 5861 is 1685.

5861 is nontrivially palindromic in base 4.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4900 + 961 = 70^2 + 31^2 .

It is a cyclic number.

It is not a de Polignac number, because 5861 - 2² = 5857 is a prime.

It is a plaindrome in base 8, base 11 and base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2930 + 2931.

It is an arithmetic number, because the mean of its divisors is an integer number (2931).

It is an amenable number.

5861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5861 is an equidigital number, since it uses as much as digits as its factorization.

5861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 240, while the sum is 20.

The square root of 5861 is about 76.5571681817. The cubic root of 5861 is about 18.0297860743.

The spelling of 5861 in words is "five thousand, eight hundred sixty-one".