711791 has 4 divisors (see below), whose sum is σ = 734784. Its totient is φ = 688800.

The previous prime is 711757. The next prime is 711793. The reversal of 711791 is 197117.

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 711791 - 2⁶ = 711727 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 711791.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (711793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11450 + ... + 11511.

It is an arithmetic number, because the mean of its divisors is an integer number (183696).

2⁷¹¹⁷⁹¹ is an apocalyptic number.

711791 is a deficient number, since it is larger than the sum of its proper divisors (22993).

711791 is a wasteful number, since it uses less digits than its factorization.

711791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22992.

The product of its digits is 441, while the sum is 26.

The square root of 711791 is about 843.6770709223. The cubic root of 711791 is about 89.2861638682.

The spelling of 711791 in words is "seven hundred eleven thousand, seven hundred ninety-one".