871955944 has 16 divisors (see below), whose sum is σ = 1706001120. Its totient is φ = 417022320.

The previous prime is 871955939. The next prime is 871955957. The reversal of 871955944 is 449559178.

It is a super-2 number, since 2×871955944² = 1520614336553862272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 871955891 and 871955900.

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, 2369262 + ... + 2369629.

It is an arithmetic number, because the mean of its divisors is an integer number (106625070).

Almost surely, 2^871955944 is an apocalyptic number.

It is an amenable number.

871955944 is a deficient number, since it is larger than the sum of its proper divisors (834045176).

871955944 is a wasteful number, since it uses less digits than its factorization.

871955944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738920 (or 4738916 counting only the distinct ones).

The product of its digits is 1814400, while the sum is 52.

The square root of 871955944 is about 29528.9001488372. The cubic root of 871955944 is about 955.3551465495.

It can be divided in two parts, 87195 and 5944, that added together give a palindrome (93139).

The spelling of 871955944 in words is "eight hundred seventy-one million, nine hundred fifty-five thousand, nine hundred forty-four".