11289587 has 2 divisors, whose sum is σ = 11289588. Its totient is φ = 11289586.

The previous prime is 11289569. The next prime is 11289601. The reversal of 11289587 is 78598211.

11289587 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (78598211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11289587 - 2¹⁴ = 11273203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11289517) 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, 5644793 + 5644794.

It is an arithmetic number, because the mean of its divisors is an integer number (5644794).

Almost surely, 2^11289587 is an apocalyptic number.

11289587 is a deficient number, since it is larger than the sum of its proper divisors (1).

11289587 is an equidigital number, since it uses as much as digits as its factorization.

11289587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 41.

The square root of 11289587 is about 3359.9980654756. The cubic root of 11289587 is about 224.3327524216.

The spelling of 11289587 in words is "eleven million, two hundred eighty-nine thousand, five hundred eighty-seven".