671171 has 4 divisors (see below), whose sum is σ = 673872. Its totient is φ = 668472.

The previous prime is 671161. The next prime is 671189. The reversal of 671171 is 171176.

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 671171 - 2¹⁰ = 670147 is a prime.

It is a super-2 number, since 2×671171² = 900941022482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671131) 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, 935 + ... + 1488.

It is an arithmetic number, because the mean of its divisors is an integer number (168468).

2⁶⁷¹¹⁷¹ is an apocalyptic number.

671171 is a deficient number, since it is larger than the sum of its proper divisors (2701).

671171 is a wasteful number, since it uses less digits than its factorization.

671171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700.

The product of its digits is 294, while the sum is 23.

The square root of 671171 is about 819.2502670125. The cubic root of 671171 is about 87.5543499075.

The spelling of 671171 in words is "six hundred seventy-one thousand, one hundred seventy-one".