6659983 has 8 divisors (see below), whose sum is σ = 7284816. Its totient is φ = 6038400.

The previous prime is 6659977. The next prime is 6660011. The reversal of 6659983 is 3899566.

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

It is a cyclic number.

It is not a de Polignac number, because 6659983 - 2¹³ = 6651791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6659683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6013 + ... + 7033.

It is an arithmetic number, because the mean of its divisors is an integer number (910602).

Almost surely, 2^6659983 is an apocalyptic number.

6659983 is a deficient number, since it is larger than the sum of its proper divisors (624833).

6659983 is a wasteful number, since it uses less digits than its factorization.

6659983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1625.

The product of its digits is 349920, while the sum is 46.

The square root of 6659983 is about 2580.6942864276. The cubic root of 6659983 is about 188.1442890344.

It can be divided in two parts, 665 and 9983, that added together give a cube (10648 = 22³).

The spelling of 6659983 in words is "six million, six hundred fifty-nine thousand, nine hundred eighty-three".