871768536 has 64 divisors (see below), whose sum is σ = 2260051200. Its totient is φ = 279888000.

The previous prime is 871768523. The next prime is 871768543. The reversal of 871768536 is 635867178.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 340461 + ... + 343011.

It is an arithmetic number, because the mean of its divisors is an integer number (35313300).

Almost surely, 2^871768536 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 871768536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1130025600).

871768536 is an abundant number, since it is smaller than the sum of its proper divisors (1388282664).

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

871768536 is a wasteful number, since it uses less digits than its factorization.

871768536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3080 (or 3076 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 51.

The square root of 871768536 is about 29525.7266803037. The cubic root of 871768536 is about 955.2866973627.

The spelling of 871768536 in words is "eight hundred seventy-one million, seven hundred sixty-eight thousand, five hundred thirty-six".