11712287 has 2 divisors, whose sum is σ = 11712288. Its totient is φ = 11712286.

The previous prime is 11712277. The next prime is 11712289. The reversal of 11712287 is 78221711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11712287 - 2⁴ = 11712271 is a prime.

Together with 11712289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11712289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5856143 + 5856144.

It is an arithmetic number, because the mean of its divisors is an integer number (5856144).

Almost surely, 2^11712287 is an apocalyptic number.

11712287 is a deficient number, since it is larger than the sum of its proper divisors (1).

11712287 is an equidigital number, since it uses as much as digits as its factorization.

11712287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1568, while the sum is 29.

The square root of 11712287 is about 3422.3218726473. The cubic root of 11712287 is about 227.0983098017.

Adding to 11712287 its reverse (78221711), we get a palindrome (89933998).

The spelling of 11712287 in words is "eleven million, seven hundred twelve thousand, two hundred eighty-seven".