6875861 has 2 divisors, whose sum is σ = 6875862. Its totient is φ = 6875860.

The previous prime is 6875851. The next prime is 6875867. The reversal of 6875861 is 1685786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6838225 + 37636 = 2615^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 6875861 - 2¹⁰ = 6874837 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6875867) 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, 3437930 + 3437931.

It is an arithmetic number, because the mean of its divisors is an integer number (3437931).

Almost surely, 2^6875861 is an apocalyptic number.

It is an amenable number.

6875861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6875861 is an equidigital number, since it uses as much as digits as its factorization.

6875861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 41.

The square root of 6875861 is about 2622.1863015430. The cubic root of 6875861 is about 190.1555605057.

The spelling of 6875861 in words is "six million, eight hundred seventy-five thousand, eight hundred sixty-one".