208471 has 4 divisors (see below), whose sum is σ = 220752. Its totient is φ = 196192.

The previous prime is 208469. The next prime is 208489. The reversal of 208471 is 174802.

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 208471 - 2¹ = 208469 is a prime.

It is a super-3 number, since 3×208471³ = 27180547695813333, which contains 333 as substring.

It is a Smith number, since the sum of its digits (22) 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.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6115 + ... + 6148.

It is an arithmetic number, because the mean of its divisors is an integer number (55188).

2²⁰⁸⁴⁷¹ is an apocalyptic number.

208471 is a deficient number, since it is larger than the sum of its proper divisors (12281).

208471 is a wasteful number, since it uses less digits than its factorization.

208471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12280.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 208471 is about 456.5862459602. The cubic root of 208471 is about 59.2946099502.

The spelling of 208471 in words is "two hundred eight thousand, four hundred seventy-one".