6650659 has 2 divisors, whose sum is σ = 6650660. Its totient is φ = 6650658.

The previous prime is 6650629. The next prime is 6650671. The reversal of 6650659 is 9560566.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6650659 - 2⁷ = 6650531 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6650629) 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, 3325329 + 3325330.

It is an arithmetic number, because the mean of its divisors is an integer number (3325330).

Almost surely, 2^6650659 is an apocalyptic number.

6650659 is a deficient number, since it is larger than the sum of its proper divisors (1).

6650659 is an equidigital number, since it uses as much as digits as its factorization.

6650659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48600, while the sum is 37.

The square root of 6650659 is about 2578.8871630996. The cubic root of 6650659 is about 188.0564471363.

The spelling of 6650659 in words is "six million, six hundred fifty thousand, six hundred fifty-nine".