871223888 has 40 divisors (see below), whose sum is σ = 1792171008. Its totient is φ = 408868352.

The previous prime is 871223863. The next prime is 871223971. The reversal of 871223888 is 888322178.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99995 + ... + 108357.

Almost surely, 2^871223888 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 871223888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (896085504).

871223888 is an abundant number, since it is smaller than the sum of its proper divisors (920947120).

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

871223888 is a wasteful number, since it uses less digits than its factorization.

871223888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8771 (or 8765 counting only the distinct ones).

The product of its digits is 344064, while the sum is 47.

The square root of 871223888 is about 29516.5019607676. The cubic root of 871223888 is about 955.0877135886.

The spelling of 871223888 in words is "eight hundred seventy-one million, two hundred twenty-three thousand, eight hundred eighty-eight".