11487589 has 2 divisors, whose sum is σ = 11487590. Its totient is φ = 11487588.

The previous prime is 11487569. The next prime is 11487607. The reversal of 11487589 is 98578411.

It is a happy number.

11487589 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 can be written as a sum of positive squares in only one way, i.e., 8820900 + 2666689 = 2970^2 + 1633^2 .

It is a cyclic number.

It is not a de Polignac number, because 11487589 - 2¹³ = 11479397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11487569) 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, 5743794 + 5743795.

It is an arithmetic number, because the mean of its divisors is an integer number (5743795).

Almost surely, 2^11487589 is an apocalyptic number.

It is an amenable number.

11487589 is a deficient number, since it is larger than the sum of its proper divisors (1).

11487589 is an equidigital number, since it uses as much as digits as its factorization.

11487589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 43.

The square root of 11487589 is about 3389.3345954627. The cubic root of 11487589 is about 225.6366429946.

The spelling of 11487589 in words is "eleven million, four hundred eighty-seven thousand, five hundred eighty-nine".