11719289 has 2 divisors, whose sum is σ = 11719290. Its totient is φ = 11719288.

The previous prime is 11719243. The next prime is 11719303. The reversal of 11719289 is 98291711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10291264 + 1428025 = 3208^2 + 1195^2 .

It is a cyclic number.

It is not a de Polignac number, because 11719289 - 2¹⁶ = 11653753 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11719889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5859644 + 5859645.

It is an arithmetic number, because the mean of its divisors is an integer number (5859645).

Almost surely, 2^11719289 is an apocalyptic number.

It is an amenable number.

11719289 is a deficient number, since it is larger than the sum of its proper divisors (1).

11719289 is an equidigital number, since it uses as much as digits as its factorization.

11719289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 38.

The square root of 11719289 is about 3423.3447094910. The cubic root of 11719289 is about 227.1435564613.

The spelling of 11719289 in words is "eleven million, seven hundred nineteen thousand, two hundred eighty-nine".