868171 has 2 divisors, whose sum is σ = 868172. Its totient is φ = 868170.

The previous prime is 868157. The next prime is 868177. The reversal of 868171 is 171868.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 868171 - 2¹¹ = 866123 is a prime.

It is not a weakly prime, because it can be changed into another prime (868177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434085 + 434086.

It is an arithmetic number, because the mean of its divisors is an integer number (434086).

2⁸⁶⁸¹⁷¹ is an apocalyptic number.

868171 is a deficient number, since it is larger than the sum of its proper divisors (1).

868171 is an equidigital number, since it uses as much as digits as its factorization.

868171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2688, while the sum is 31.

The square root of 868171 is about 931.7569425553. The cubic root of 868171 is about 95.3970821875.

The spelling of 868171 in words is "eight hundred sixty-eight thousand, one hundred seventy-one".