871056 has 60 divisors (see below), whose sum is σ = 2553408. Its totient is φ = 276672.

The previous prime is 871037. The next prime is 871061. The reversal of 871056 is 650178.

It is an unprimeable number.

871056 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3181 + ... + 3443.

2⁸⁷¹⁰⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 871056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1276704).

871056 is an abundant number, since it is smaller than the sum of its proper divisors (1682352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871056 is a wasteful number, since it uses less digits than its factorization.

871056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 291 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 871056 is about 933.3038090568. The cubic root of 871056 is about 95.5026360026.

The spelling of 871056 in words is "eight hundred seventy-one thousand, fifty-six".