6663875 has 16 divisors (see below), whose sum is σ = 8424000. Its totient is φ = 5262400.

The previous prime is 6663869. The next prime is 6663893. The reversal of 6663875 is 5783666.

It is a de Polignac number, because none of the positive numbers 2^k-6663875 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10826 + ... + 11424.

It is an arithmetic number, because the mean of its divisors is an integer number (526500).

Almost surely, 2^6663875 is an apocalyptic number.

6663875 is a deficient number, since it is larger than the sum of its proper divisors (1760125).

6663875 is an equidigital number, since it uses as much as digits as its factorization.

6663875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703 (or 693 counting only the distinct ones).

The product of its digits is 181440, while the sum is 41.

The square root of 6663875 is about 2581.4482369399. The cubic root of 6663875 is about 188.1809315193.

The spelling of 6663875 in words is "six million, six hundred sixty-three thousand, eight hundred seventy-five".