208671 has 4 divisors (see below), whose sum is σ = 278232. Its totient is φ = 139112.

The previous prime is 208667. The next prime is 208673. The reversal of 208671 is 176802.

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 208671 - 2² = 208667 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208673) 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, 34776 + ... + 34781.

It is an arithmetic number, because the mean of its divisors is an integer number (69558).

2²⁰⁸⁶⁷¹ is an apocalyptic number.

208671 is a deficient number, since it is larger than the sum of its proper divisors (69561).

208671 is an equidigital number, since it uses as much as digits as its factorization.

208671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69560.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 208671 is about 456.8052101279. The cubic root of 208671 is about 59.3135656350.

The spelling of 208671 in words is "two hundred eight thousand, six hundred seventy-one".