11589381 has 12 divisors (see below), whose sum is σ = 17280640. Its totient is φ = 7476840.

The previous prime is 11589367. The next prime is 11589397. The reversal of 11589381 is 18398511.

11589381 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11589381 - 2⁹ = 11588869 is a prime.

It is a super-2 number, since 2×11589381² = 268627503926322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11589341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20491 + ... + 21048.

Almost surely, 2^11589381 is an apocalyptic number.

It is an amenable number.

11589381 is a deficient number, since it is larger than the sum of its proper divisors (5691259).

11589381 is a wasteful number, since it uses less digits than its factorization.

11589381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41576 (or 41573 counting only the distinct ones).

The product of its digits is 8640, while the sum is 36.

The square root of 11589381 is about 3404.3179933725. The cubic root of 11589381 is about 226.3011426565.

The spelling of 11589381 in words is "eleven million, five hundred eighty-nine thousand, three hundred eighty-one".