6709663 has 2 divisors, whose sum is σ = 6709664. Its totient is φ = 6709662.

The previous prime is 6709631. The next prime is 6709687. The reversal of 6709663 is 3669076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6709663 - 2⁵ = 6709631 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6709613) 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, 3354831 + 3354832.

It is an arithmetic number, because the mean of its divisors is an integer number (3354832).

Almost surely, 2^6709663 is an apocalyptic number.

6709663 is a deficient number, since it is larger than the sum of its proper divisors (1).

6709663 is an equidigital number, since it uses as much as digits as its factorization.

6709663 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 6709663 is about 2590.3017198774. The cubic root of 6709663 is about 188.6109500278.

The spelling of 6709663 in words is "six million, seven hundred nine thousand, six hundred sixty-three".