5686861 has 2 divisors, whose sum is σ = 5686862. Its totient is φ = 5686860.

The previous prime is 5686853. The next prime is 5686867. The reversal of 5686861 is 1686865.

It is a happy number.

5686861 is digitally balanced in base 3, 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., 5593225 + 93636 = 2365^2 + 306^2 .

It is a cyclic number.

It is not a de Polignac number, because 5686861 - 2³ = 5686853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5686867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2843430 + 2843431.

It is an arithmetic number, because the mean of its divisors is an integer number (2843431).

Almost surely, 2^5686861 is an apocalyptic number.

It is an amenable number.

5686861 is a deficient number, since it is larger than the sum of its proper divisors (1).

5686861 is an equidigital number, since it uses as much as digits as its factorization.

5686861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 40.

The square root of 5686861 is about 2384.7140289771. The cubic root of 5686861 is about 178.4942393400.

The spelling of 5686861 in words is "five million, six hundred eighty-six thousand, eight hundred sixty-one".