871884871 has 16 divisors (see below), whose sum is σ = 1036667520. Its totient is φ = 722826720.

The previous prime is 871884859. The next prime is 871884877. The reversal of 871884871 is 178488178.

It is not a de Polignac number, because 871884871 - 2⁷ = 871884743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871884877) 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, 24861 + ... + 48598.

It is an arithmetic number, because the mean of its divisors is an integer number (64791720).

Almost surely, 2^871884871 is an apocalyptic number.

871884871 is a deficient number, since it is larger than the sum of its proper divisors (164782649).

871884871 is a wasteful number, since it uses less digits than its factorization.

871884871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73566.

The product of its digits is 802816, while the sum is 52.

The square root of 871884871 is about 29527.6966761717. The cubic root of 871884871 is about 955.3291888920.

The spelling of 871884871 in words is "eight hundred seventy-one million, eight hundred eighty-four thousand, eight hundred seventy-one".