871143 has 16 divisors (see below), whose sum is σ = 1430016. Its totient is φ = 459360.

The previous prime is 871103. The next prime is 871147. The reversal of 871143 is 341178.

It is not a de Polignac number, because 871143 - 2¹⁸ = 608999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1323 + ... + 1868.

It is an arithmetic number, because the mean of its divisors is an integer number (89376).

2⁸⁷¹¹⁴³ is an apocalyptic number.

871143 is a deficient number, since it is larger than the sum of its proper divisors (558873).

871143 is a wasteful number, since it uses less digits than its factorization.

871143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3214.

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

The square root of 871143 is about 933.3504165103. The cubic root of 871143 is about 95.5058154587.

The spelling of 871143 in words is "eight hundred seventy-one thousand, one hundred forty-three".