11643089 has 2 divisors, whose sum is σ = 11643090. Its totient is φ = 11643088.

The previous prime is 11643041. The next prime is 11643091. The reversal of 11643089 is 98034611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6838225 + 4804864 = 2615^2 + 2192^2 .

It is a cyclic number.

It is not a de Polignac number, because 11643089 - 2¹² = 11638993 is a prime.

Together with 11643091, 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 (11643389) 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 as a sum of consecutive naturals, namely, 5821544 + 5821545.

It is an arithmetic number, because the mean of its divisors is an integer number (5821545).

Almost surely, 2^11643089 is an apocalyptic number.

It is an amenable number.

11643089 is a deficient number, since it is larger than the sum of its proper divisors (1).

11643089 is an equidigital number, since it uses as much as digits as its factorization.

11643089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 11643089 is about 3412.1970927835. The cubic root of 11643089 is about 226.6501821441.

The spelling of 11643089 in words is "eleven million, six hundred forty-three thousand, eighty-nine".