2011717 has 4 divisors (see below), whose sum is σ = 2014636. Its totient is φ = 2008800.

The previous prime is 2011703. The next prime is 2011733. The reversal of 2011717 is 7171102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 164836 + 1846881 = 406^2 + 1359^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011717 - 2¹¹ = 2009669 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011694 and 2011703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217 + ... + 2017.

It is an arithmetic number, because the mean of its divisors is an integer number (503659).

2^2011717 is an apocalyptic number.

It is an amenable number.

2011717 is a deficient number, since it is larger than the sum of its proper divisors (2919).

2011717 is a wasteful number, since it uses less digits than its factorization.

2011717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2918.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 2011717 is about 1418.3500978249. The cubic root of 2011717 is about 126.2376676514.

Adding to 2011717 its reverse (7171102), we get a palindrome (9182819).

The spelling of 2011717 in words is "two million, eleven thousand, seven hundred seventeen".