871039791 has 16 divisors (see below), whose sum is σ = 1302961920. Its totient is φ = 575053560.

The previous prime is 871039721. The next prime is 871039811. The reversal of 871039791 is 197930178.

It is not a de Polignac number, because 871039791 - 2²⁶ = 803930927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871039721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153825 + ... + 159386.

It is an arithmetic number, because the mean of its divisors is an integer number (81435120).

Almost surely, 2^871039791 is an apocalyptic number.

871039791 is a deficient number, since it is larger than the sum of its proper divisors (431922129).

871039791 is a wasteful number, since it uses less digits than its factorization.

871039791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313323 (or 313317 counting only the distinct ones).

The product of its (nonzero) digits is 95256, while the sum is 45.

The square root of 871039791 is about 29513.3832523484. The cubic root of 871039791 is about 955.0204361370.

The spelling of 871039791 in words is "eight hundred seventy-one million, thirty-nine thousand, seven hundred ninety-one".