9886085971 has 2 divisors, whose sum is σ = 9886085972. Its totient is φ = 9886085970.

The previous prime is 9886085959. The next prime is 9886086013. The reversal of 9886085971 is 1795806889.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9886085971 - 2⁹ = 9886085459 is a prime.

It is not a weakly prime, because it can be changed into another prime (9886085921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4943042985 + 4943042986.

It is an arithmetic number, because the mean of its divisors is an integer number (4943042986).

Almost surely, 2^9886085971 is an apocalyptic number.

9886085971 is a deficient number, since it is larger than the sum of its proper divisors (1).

9886085971 is an equidigital number, since it uses as much as digits as its factorization.

9886085971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 61.

The square root of 9886085971 is about 99428.7984992276. The cubic root of 9886085971 is about 2146.2227509504. Note that the first 3 decimals are identical.

The spelling of 9886085971 in words is "nine billion, eight hundred eighty-six million, eighty-five thousand, nine hundred seventy-one".