871913928 has 32 divisors (see below), whose sum is σ = 2196956160. Its totient is φ = 288348480.

The previous prime is 871913869. The next prime is 871913941. The reversal of 871913928 is 829319178.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139983 + ... + 146078.

It is an arithmetic number, because the mean of its divisors is an integer number (68654880).

Almost surely, 2^871913928 is an apocalyptic number.

It is an amenable number.

871913928 is an abundant number, since it is smaller than the sum of its proper divisors (1325042232).

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

871913928 is a wasteful number, since it uses less digits than its factorization.

871913928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286197 (or 286193 counting only the distinct ones).

The product of its digits is 217728, while the sum is 48.

The square root of 871913928 is about 29528.1887016458. The cubic root of 871913928 is about 955.3398014139.

It can be divided in two parts, 87191 and 3928, that added together give a palindrome (91119).

The spelling of 871913928 in words is "eight hundred seventy-one million, nine hundred thirteen thousand, nine hundred twenty-eight".