871863696 has 80 divisors (see below), whose sum is σ = 2730093120. Its totient is φ = 264199680.

The previous prime is 871863679. The next prime is 871863719. The reversal of 871863696 is 696368178.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 86985 + ... + 96488.

It is an arithmetic number, because the mean of its divisors is an integer number (34126164).

Almost surely, 2^871863696 is an apocalyptic number.

It is an amenable number.

871863696 is an abundant number, since it is smaller than the sum of its proper divisors (1858229424).

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

871863696 is a wasteful number, since it uses less digits than its factorization.

871863696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183501 (or 183489 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 871863696 is about 29527.3381123324. The cubic root of 871863696 is about 955.3214549736.

The spelling of 871863696 in words is "eight hundred seventy-one million, eight hundred sixty-three thousand, six hundred ninety-six".