6659089 has 2 divisors, whose sum is σ = 6659090. Its totient is φ = 6659088.

The previous prime is 6659077. The next prime is 6659111. The reversal of 6659089 is 9809566.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5919489 + 739600 = 2433^2 + 860^2 .

It is a cyclic number.

It is not a de Polignac number, because 6659089 - 2⁵ = 6659057 is a prime.

6659089 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6659689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3329544 + 3329545.

It is an arithmetic number, because the mean of its divisors is an integer number (3329545).

Almost surely, 2^6659089 is an apocalyptic number.

It is an amenable number.

6659089 is a deficient number, since it is larger than the sum of its proper divisors (1).

6659089 is an equidigital number, since it uses as much as digits as its factorization.

6659089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 6659089 is about 2580.5210714117. The cubic root of 6659089 is about 188.1358701680.

The spelling of 6659089 in words is "six million, six hundred fifty-nine thousand, eighty-nine".