871171864 has 16 divisors (see below), whose sum is σ = 1649621520. Its totient is φ = 431272800.

The previous prime is 871171849. The next prime is 871171879. The reversal of 871171864 is 468171178.

871171864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (871171849) and next prime (871171879).

It is a self number, because there is not a number n which added to its sum of digits gives 871171864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538284 + ... + 539899.

It is an arithmetic number, because the mean of its divisors is an integer number (103101345).

Almost surely, 2^871171864 is an apocalyptic number.

It is an amenable number.

871171864 is a deficient number, since it is larger than the sum of its proper divisors (778449656).

871171864 is a wasteful number, since it uses less digits than its factorization.

871171864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078290 (or 1078286 counting only the distinct ones).

The product of its digits is 75264, while the sum is 43.

The square root of 871171864 is about 29515.6206778716. The cubic root of 871171864 is about 955.0687026038.

The spelling of 871171864 in words is "eight hundred seventy-one million, one hundred seventy-one thousand, eight hundred sixty-four".