6606647 has 2 divisors, whose sum is σ = 6606648. Its totient is φ = 6606646.

The previous prime is 6606641. The next prime is 6606653. The reversal of 6606647 is 7466066.

It is a balanced prime because it is at equal distance from previous prime (6606641) and next prime (6606653).

It is a cyclic number.

It is not a de Polignac number, because 6606647 - 2⁴ = 6606631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6606641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3303323 + 3303324.

It is an arithmetic number, because the mean of its divisors is an integer number (3303324).

Almost surely, 2^6606647 is an apocalyptic number.

6606647 is a deficient number, since it is larger than the sum of its proper divisors (1).

6606647 is an equidigital number, since it uses as much as digits as its factorization.

6606647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 6606647 is about 2570.3398607966. The cubic root of 6606647 is about 187.6406955841.

The spelling of 6606647 in words is "six million, six hundred six thousand, six hundred forty-seven".