11717717 has 16 divisors (see below), whose sum is σ = 13219200. Its totient is φ = 10296000.

The previous prime is 11717687. The next prime is 11717723. The reversal of 11717717 is 71771711.

11717717 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11717717 - 2¹² = 11713621 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 (11717317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58784 + ... + 58982.

It is an arithmetic number, because the mean of its divisors is an integer number (826200).

Almost surely, 2^11717717 is an apocalyptic number.

It is an amenable number.

11717717 is a deficient number, since it is larger than the sum of its proper divisors (1501483).

11717717 is a wasteful number, since it uses less digits than its factorization.

11717717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364.

The product of its digits is 2401, while the sum is 32.

The square root of 11717717 is about 3423.1151017750. The cubic root of 11717717 is about 227.1333998259.

It can be divided in two parts, 1171 and 7717, that added together give a palindrome (8888).

The spelling of 11717717 in words is "eleven million, seven hundred seventeen thousand, seven hundred seventeen".