6663305 has 8 divisors (see below), whose sum is σ = 8722944. Its totient is φ = 4846000.

The previous prime is 6663299. The next prime is 6663311. The reversal of 6663305 is 5033666.

It is an interprime number because it is at equal distance from previous prime (6663299) and next prime (6663311).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6663305 - 2⁴ = 6663289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60521 + ... + 60630.

It is an arithmetic number, because the mean of its divisors is an integer number (1090368).

Almost surely, 2^6663305 is an apocalyptic number.

It is an amenable number.

6663305 is a deficient number, since it is larger than the sum of its proper divisors (2059639).

6663305 is a wasteful number, since it uses less digits than its factorization.

6663305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121167.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 6663305 is about 2581.3378314355. The cubic root of 6663305 is about 188.1755659630.

The spelling of 6663305 in words is "six million, six hundred sixty-three thousand, three hundred five".