10006861 has 2 divisors, whose sum is σ = 10006862. Its totient is φ = 10006860.

The previous prime is 10006849. The next prime is 10006873. The reversal of 10006861 is 16860001.

It is a balanced prime because it is at equal distance from previous prime (10006849) and next prime (10006873).

It can be written as a sum of positive squares in only one way, i.e., 8590761 + 1416100 = 2931^2 + 1190^2 .

It is a cyclic number.

It is not a de Polignac number, because 10006861 - 2⁹ = 10006349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10006261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5003430 + 5003431.

It is an arithmetic number, because the mean of its divisors is an integer number (5003431).

Almost surely, 2^10006861 is an apocalyptic number.

It is an amenable number.

10006861 is a deficient number, since it is larger than the sum of its proper divisors (1).

10006861 is an equidigital number, since it uses as much as digits as its factorization.

10006861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 10006861 is about 3163.3622935099. The cubic root of 10006861 is about 215.4927296604.

Adding to 10006861 its reverse (16860001), we get a palindrome (26866862).

The spelling of 10006861 in words is "ten million, six thousand, eight hundred sixty-one".