11587649 has 2 divisors, whose sum is σ = 11587650. Its totient is φ = 11587648.

The previous prime is 11587643. The next prime is 11587651. The reversal of 11587649 is 94678511.

11587649 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., 10195249 + 1392400 = 3193^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 11587649 - 2⁸ = 11587393 is a prime.

Together with 11587651, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11587643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5793824 + 5793825.

It is an arithmetic number, because the mean of its divisors is an integer number (5793825).

Almost surely, 2^11587649 is an apocalyptic number.

It is an amenable number.

11587649 is a deficient number, since it is larger than the sum of its proper divisors (1).

11587649 is an equidigital number, since it uses as much as digits as its factorization.

11587649 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 41.

The square root of 11587649 is about 3404.0636010510. The cubic root of 11587649 is about 226.2898687410.

The spelling of 11587649 in words is "eleven million, five hundred eighty-seven thousand, six hundred forty-nine".