11680717 has 4 divisors (see below), whose sum is σ = 12367836. Its totient is φ = 10993600.

The previous prime is 11680693. The next prime is 11680727. The reversal of 11680717 is 71708611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8462281 + 3218436 = 2909^2 + 1794^2 .

It is a cyclic number.

It is not a de Polignac number, because 11680717 - 2¹⁵ = 11647949 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11680727) 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, 343534 + ... + 343567.

It is an arithmetic number, because the mean of its divisors is an integer number (3091959).

Almost surely, 2^11680717 is an apocalyptic number.

11680717 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11680717 is a deficient number, since it is larger than the sum of its proper divisors (687119).

11680717 is an equidigital number, since it uses as much as digits as its factorization.

11680717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687118.

The product of its (nonzero) digits is 2352, while the sum is 31.

The square root of 11680717 is about 3417.7063946454. The cubic root of 11680717 is about 226.8940813990.

The spelling of 11680717 in words is "eleven million, six hundred eighty thousand, seven hundred seventeen".