871992894 has 8 divisors (see below), whose sum is σ = 1743985800. Its totient is φ = 290664296.

The previous prime is 871992889. The next prime is 871992899. The reversal of 871992894 is 498299178.

It is an interprime number because it is at equal distance from previous prime (871992889) and next prime (871992899).

It is a sphenic number, since it is the product of 3 distinct primes.

871992894 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871992899) 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 3 ways as a sum of consecutive naturals, for example, 72666069 + ... + 72666080.

It is an arithmetic number, because the mean of its divisors is an integer number (217998225).

Almost surely, 2^871992894 is an apocalyptic number.

871992894 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

871992894 is a wasteful number, since it uses less digits than its factorization.

871992894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145332154.

The product of its digits is 2612736, while the sum is 57.

The square root of 871992894 is about 29529.5258004594. The cubic root of 871992894 is about 955.3686410669.

The spelling of 871992894 in words is "eight hundred seventy-one million, nine hundred ninety-two thousand, eight hundred ninety-four".