9982171 has 2 divisors, whose sum is σ = 9982172. Its totient is φ = 9982170.

The previous prime is 9982169. The next prime is 9982183. The reversal of 9982171 is 1712899.

It is a weak prime.

It is an emirp because it is prime and its reverse (1712899) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9982171 - 2¹ = 9982169 is a prime.

Together with 9982169, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 9982171.

It is not a weakly prime, because it can be changed into another prime (9982571) 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, 4991085 + 4991086.

It is an arithmetic number, because the mean of its divisors is an integer number (4991086).

Almost surely, 2^9982171 is an apocalyptic number.

9982171 is a deficient number, since it is larger than the sum of its proper divisors (1).

9982171 is an equidigital number, since it uses as much as digits as its factorization.

9982171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 37.

The square root of 9982171 is about 3159.4573901226. The cubic root of 9982171 is about 215.3153547811.

It can be divided in two parts, 9982 and 171, that added together give a triangular number (10153 = T₁₄₂).

The spelling of 9982171 in words is "nine million, nine hundred eighty-two thousand, one hundred seventy-one".