11682989 has 4 divisors (see below), whose sum is σ = 11700924. Its totient is φ = 11665056.

The previous prime is 11682953. The next prime is 11683013. The reversal of 11682989 is 98928611.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6461764 + 5221225 = 2542^2 + 2285^2 .

It is a cyclic number.

It is not a de Polignac number, because 11682989 - 2¹⁶ = 11617453 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 (11682289) 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, 7952 + ... + 9305.

It is an arithmetic number, because the mean of its divisors is an integer number (2925231).

Almost surely, 2^11682989 is an apocalyptic number.

It is an amenable number.

11682989 is a deficient number, since it is larger than the sum of its proper divisors (17935).

11682989 is an equidigital number, since it uses as much as digits as its factorization.

11682989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17934.

The product of its digits is 62208, while the sum is 44.

The square root of 11682989 is about 3418.0387651400. The cubic root of 11682989 is about 226.9087913959.

The spelling of 11682989 in words is "eleven million, six hundred eighty-two thousand, nine hundred eighty-nine".