6608663 has 4 divisors (see below), whose sum is σ = 6614160. Its totient is φ = 6603168.

The previous prime is 6608653. The next prime is 6608683. The reversal of 6608663 is 3668066.

6608663 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3668066 = 2 ⋅1834033.

It is a cyclic number.

It is not a de Polignac number, because 6608663 - 2⁴ = 6608647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6608603) 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 in 3 ways as a sum of consecutive naturals, for example, 83 + ... + 3636.

It is an arithmetic number, because the mean of its divisors is an integer number (1653540).

Almost surely, 2^6608663 is an apocalyptic number.

6608663 is a deficient number, since it is larger than the sum of its proper divisors (5497).

6608663 is a wasteful number, since it uses less digits than its factorization.

6608663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 6608663 is about 2570.7319969223. The cubic root of 6608663 is about 187.6597796556.

The spelling of 6608663 in words is "six million, six hundred eight thousand, six hundred sixty-three".