711871 has 4 divisors (see below), whose sum is σ = 718632. Its totient is φ = 705112.

The previous prime is 711859. The next prime is 711877. The reversal of 711871 is 178117.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 711871 - 2⁵ = 711839 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 (711877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3220 + ... + 3433.

It is an arithmetic number, because the mean of its divisors is an integer number (179658).

2⁷¹¹⁸⁷¹ is an apocalyptic number.

711871 is a deficient number, since it is larger than the sum of its proper divisors (6761).

711871 is a wasteful number, since it uses less digits than its factorization.

711871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760.

The product of its digits is 392, while the sum is 25.

The square root of 711871 is about 843.7244810956. The cubic root of 711871 is about 89.2895087759.

Adding to 711871 its reverse (178117), we get a palindrome (889988).

The spelling of 711871 in words is "seven hundred eleven thousand, eight hundred seventy-one".