871723960 has 64 divisors (see below), whose sum is σ = 2127474720. Its totient is φ = 320163840.

The previous prime is 871723891. The next prime is 871723961. The reversal of 871723960 is 69327178.

It is a happy number.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871723961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12247 + ... + 43513.

Almost surely, 2^871723960 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 871723960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1063737360).

871723960 is an abundant number, since it is smaller than the sum of its proper divisors (1255750760).

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

871723960 is a wasteful number, since it uses less digits than its factorization.

871723960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31336 (or 31332 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 871723960 is about 29524.9718035428. The cubic root of 871723960 is about 955.2704149116.

The spelling of 871723960 in words is "eight hundred seventy-one million, seven hundred twenty-three thousand, nine hundred sixty".