871034256 has 160 divisors (see below), whose sum is σ = 2606083200. Its totient is φ = 278208000.

The previous prime is 871034251. The next prime is 871034257. The reversal of 871034256 is 652430178.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 871034256.

It is not an unprimeable number, because it can be changed into a prime (871034251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3144390 + ... + 3144666.

It is an arithmetic number, because the mean of its divisors is an integer number (16288020).

Almost surely, 2^871034256 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 871034256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1303041600).

871034256 is an abundant number, since it is smaller than the sum of its proper divisors (1735048944).

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

871034256 is a wasteful number, since it uses less digits than its factorization.

871034256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574 (or 562 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 871034256 is about 29513.2894811812. The cubic root of 871034256 is about 955.0184132484.

The spelling of 871034256 in words is "eight hundred seventy-one million, thirty-four thousand, two hundred fifty-six".