871705296 has 270 divisors, whose sum is σ = 3122356146. Its totient is φ = 226195200.

The previous prime is 871705273. The next prime is 871705349. The reversal of 871705296 is 692507178.

It can be written as a sum of positive squares in only one way, i.e., 768398400 + 103306896 = 27720^2 + 10164^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 853266 + ... + 854286.

Almost surely, 2^871705296 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 871705296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561178073).

871705296 is an abundant number, since it is smaller than the sum of its proper divisors (2250650850).

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

871705296 is a wasteful number, since it uses less digits than its factorization.

871705296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 871705296 is about 29524.6557304230. The cubic root of 871705296 is about 955.2635972740.

The spelling of 871705296 in words is "eight hundred seventy-one million, seven hundred five thousand, two hundred ninety-six".