9881171 has 2 divisors, whose sum is σ = 9881172. Its totient is φ = 9881170.

The previous prime is 9881167. The next prime is 9881203. The reversal of 9881171 is 1711889.

9881171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (1711889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9881171 - 2² = 9881167 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9881101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4940585 + 4940586.

It is an arithmetic number, because the mean of its divisors is an integer number (4940586).

Almost surely, 2^9881171 is an apocalyptic number.

9881171 is a deficient number, since it is larger than the sum of its proper divisors (1).

9881171 is an equidigital number, since it uses as much as digits as its factorization.

9881171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 35.

The square root of 9881171 is about 3143.4329959457. The cubic root of 9881171 is about 214.5867019632.

The spelling of 9881171 in words is "nine million, eight hundred eighty-one thousand, one hundred seventy-one".