208871 has 4 divisors (see below), whose sum is σ = 224952. Its totient is φ = 192792.

The previous prime is 208843. The next prime is 208877. The reversal of 208871 is 178802.

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 208871 - 2⁶ = 208807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 208871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208877) 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 in 3 ways as a sum of consecutive naturals, for example, 8021 + ... + 8046.

It is an arithmetic number, because the mean of its divisors is an integer number (56238).

2²⁰⁸⁸⁷¹ is an apocalyptic number.

208871 is a deficient number, since it is larger than the sum of its proper divisors (16081).

208871 is a wasteful number, since it uses less digits than its factorization.

208871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16080.

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

The square root of 208871 is about 457.0240693880. The cubic root of 208871 is about 59.3325092116.

The spelling of 208871 in words is "two hundred eight thousand, eight hundred seventy-one".