9886871 has 2 divisors, whose sum is σ = 9886872. Its totient is φ = 9886870.

The previous prime is 9886853. The next prime is 9886937. The reversal of 9886871 is 1786889.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9886871 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 (9886801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4943435 + 4943436.

It is an arithmetic number, because the mean of its divisors is an integer number (4943436).

Almost surely, 2^9886871 is an apocalyptic number.

9886871 is a deficient number, since it is larger than the sum of its proper divisors (1).

9886871 is an equidigital number, since it uses as much as digits as its factorization.

9886871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 47.

The square root of 9886871 is about 3144.3395172914. The cubic root of 9886871 is about 214.6279558148.

The spelling of 9886871 in words is "nine million, eight hundred eighty-six thousand, eight hundred seventy-one".