6663089 has 2 divisors, whose sum is σ = 6663090. Its totient is φ = 6663088.

The previous prime is 6663079. The next prime is 6663103. The reversal of 6663089 is 9803666.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4389025 + 2274064 = 2095^2 + 1508^2 .

It is a cyclic number.

It is not a de Polignac number, because 6663089 - 2⁴ = 6663073 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (6663029) 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 as a sum of consecutive naturals, namely, 3331544 + 3331545.

It is an arithmetic number, because the mean of its divisors is an integer number (3331545).

Almost surely, 2^6663089 is an apocalyptic number.

It is an amenable number.

6663089 is a deficient number, since it is larger than the sum of its proper divisors (1).

6663089 is an equidigital number, since it uses as much as digits as its factorization.

6663089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 6663089 is about 2581.2959923263. The cubic root of 6663089 is about 188.1735326196.

The spelling of 6663089 in words is "six million, six hundred sixty-three thousand, eighty-nine".