871012 has 12 divisors (see below), whose sum is σ = 1614060. Its totient is φ = 409856.

The previous prime is 871001. The next prime is 871021. The reversal of 871012 is 210178.

It can be written as a sum of positive squares in 2 ways, for example, as 481636 + 389376 = 694^2 + 624^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6337 + ... + 6472.

It is an arithmetic number, because the mean of its divisors is an integer number (134505).

2⁸⁷¹⁰¹² is an apocalyptic number.

It is an amenable number.

871012 is a deficient number, since it is larger than the sum of its proper divisors (743048).

871012 is a wasteful number, since it uses less digits than its factorization.

871012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12830 (or 12828 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 871012 is about 933.2802365849. The cubic root of 871012 is about 95.5010279213.

The spelling of 871012 in words is "eight hundred seventy-one thousand, twelve".