11587399 has 4 divisors (see below), whose sum is σ = 11603464. Its totient is φ = 11571336.

The previous prime is 11587393. The next prime is 11587451. The reversal of 11587399 is 99378511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11587399 - 2³ = 11587391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11587391) 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 in 3 ways as a sum of consecutive naturals, for example, 6897 + ... + 8410.

It is an arithmetic number, because the mean of its divisors is an integer number (2900866).

Almost surely, 2^11587399 is an apocalyptic number.

11587399 is a deficient number, since it is larger than the sum of its proper divisors (16065).

11587399 is an equidigital number, since it uses as much as digits as its factorization.

11587399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16064.

The product of its digits is 68040, while the sum is 43.

The square root of 11587399 is about 3404.0268800349. The cubic root of 11587399 is about 226.2882413510.

The spelling of 11587399 in words is "eleven million, five hundred eighty-seven thousand, three hundred ninety-nine".