82871 has 4 divisors (see below), whose sum is σ = 84000. Its totient is φ = 81744.

The previous prime is 82847. The next prime is 82883. The reversal of 82871 is 17828.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82871 - 2¹⁰ = 81847 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 82871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82811) 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, 446 + ... + 603.

It is an arithmetic number, because the mean of its divisors is an integer number (21000).

2⁸²⁸⁷¹ is an apocalyptic number.

82871 is a deficient number, since it is larger than the sum of its proper divisors (1129).

82871 is a wasteful number, since it uses less digits than its factorization.

82871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128.

The product of its digits is 896, while the sum is 26.

The square root of 82871 is about 287.8732359911. The cubic root of 82871 is about 43.5980963173.

The spelling of 82871 in words is "eighty-two thousand, eight hundred seventy-one".