11680817 has 2 divisors, whose sum is σ = 11680818. Its totient is φ = 11680816.

The previous prime is 11680811. The next prime is 11680841. The reversal of 11680817 is 71808611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11621281 + 59536 = 3409^2 + 244^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11680817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11680811) 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 as a sum of consecutive naturals, namely, 5840408 + 5840409.

It is an arithmetic number, because the mean of its divisors is an integer number (5840409).

Almost surely, 2^11680817 is an apocalyptic number.

It is an amenable number.

11680817 is a deficient number, since it is larger than the sum of its proper divisors (1).

11680817 is an equidigital number, since it uses as much as digits as its factorization.

11680817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 11680817 is about 3417.7210243084. The cubic root of 11680817 is about 226.8947288861.

The spelling of 11680817 in words is "eleven million, six hundred eighty thousand, eight hundred seventeen".