871166 has 4 divisors (see below), whose sum is σ = 1306752. Its totient is φ = 435582.

The previous prime is 871163. The next prime is 871177. The reversal of 871166 is 661178.

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

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871163) 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 as a sum of consecutive naturals, namely, 217790 + ... + 217793.

It is an arithmetic number, because the mean of its divisors is an integer number (326688).

2⁸⁷¹¹⁶⁶ is an apocalyptic number.

871166 is a deficient number, since it is larger than the sum of its proper divisors (435586).

871166 is a wasteful number, since it uses less digits than its factorization.

871166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435585.

The product of its digits is 2016, while the sum is 29.

The square root of 871166 is about 933.3627376321. The cubic root of 871166 is about 95.5066559691.

The spelling of 871166 in words is "eight hundred seventy-one thousand, one hundred sixty-six".