11716571 has 2 divisors, whose sum is σ = 11716572. Its totient is φ = 11716570.

The previous prime is 11716567. The next prime is 11716613. The reversal of 11716571 is 17561711.

It is a weak prime.

It is an emirp because it is prime and its reverse (17561711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11716571 - 2² = 11716567 is a prime.

It is not a weakly prime, because it can be changed into another prime (11716501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5858285 + 5858286.

It is an arithmetic number, because the mean of its divisors is an integer number (5858286).

Almost surely, 2^11716571 is an apocalyptic number.

11716571 is a deficient number, since it is larger than the sum of its proper divisors (1).

11716571 is an equidigital number, since it uses as much as digits as its factorization.

11716571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1470, while the sum is 29.

The square root of 11716571 is about 3422.9477062906. The cubic root of 11716571 is about 227.1259949886.

The spelling of 11716571 in words is "eleven million, seven hundred sixteen thousand, five hundred seventy-one".