787871 has 8 divisors (see below), whose sum is σ = 919200. Its totient is φ = 675024.

The previous prime is 787837. The next prime is 787879. The reversal of 787871 is 178787.

787871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 787871 - 2⁶ = 787807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (787879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 806 + ... + 1491.

It is an arithmetic number, because the mean of its divisors is an integer number (114900).

2⁷⁸⁷⁸⁷¹ is an apocalyptic number.

787871 is a deficient number, since it is larger than the sum of its proper divisors (131329).

787871 is an equidigital number, since it uses as much as digits as its factorization.

787871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2318 (or 2304 counting only the distinct ones).

The product of its digits is 21952, while the sum is 38.

The square root of 787871 is about 887.6209776701. The cubic root of 787871 is about 92.3602369467.

It can be divided in two parts, 7 and 87871, that added together give a palindrome (87878).

The spelling of 787871 in words is "seven hundred eighty-seven thousand, eight hundred seventy-one".