168871 has 4 divisors (see below), whose sum is σ = 172512. Its totient is φ = 165232.

The previous prime is 168869. The next prime is 168887. The reversal of 168871 is 178861.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178861 = 383 ⋅467.

It is a cyclic number.

It is not a de Polignac number, because 168871 - 2¹ = 168869 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

168871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1750 + ... + 1843.

It is an arithmetic number, because the mean of its divisors is an integer number (43128).

2¹⁶⁸⁸⁷¹ is an apocalyptic number.

168871 is a deficient number, since it is larger than the sum of its proper divisors (3641).

168871 is an equidigital number, since it uses as much as digits as its factorization.

168871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640.

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

The square root of 168871 is about 410.9391682476. The cubic root of 168871 is about 55.2736772592.

The spelling of 168871 in words is "one hundred sixty-eight thousand, eight hundred seventy-one".