11838689 has 4 divisors (see below), whose sum is σ = 12090624. Its totient is φ = 11586756.

The previous prime is 11838679. The next prime is 11838707. The reversal of 11838689 is 98683811.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11838689 - 2⁸ = 11838433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11838649) 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 3 ways as a sum of consecutive naturals, for example, 125897 + ... + 125990.

It is an arithmetic number, because the mean of its divisors is an integer number (3022656).

Almost surely, 2^11838689 is an apocalyptic number.

It is an amenable number.

11838689 is a deficient number, since it is larger than the sum of its proper divisors (251935).

11838689 is an equidigital number, since it uses as much as digits as its factorization.

11838689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251934.

The product of its digits is 82944, while the sum is 44.

The square root of 11838689 is about 3440.7396007254. The cubic root of 11838689 is about 227.9123560233.

The spelling of 11838689 in words is "eleven million, eight hundred thirty-eight thousand, six hundred eighty-nine".