6688983 has 8 divisors (see below), whose sum is σ = 10192768. Its totient is φ = 3822264.

The previous prime is 6688967. The next prime is 6688999. The reversal of 6688983 is 3898866.

It is an interprime number because it is at equal distance from previous prime (6688967) and next prime (6688999).

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

It is not a de Polignac number, because 6688983 - 2⁴ = 6688967 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 (6688933) by changing a digit.

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, 159241 + ... + 159282.

It is an arithmetic number, because the mean of its divisors is an integer number (1274096).

Almost surely, 2^6688983 is an apocalyptic number.

6688983 is a deficient number, since it is larger than the sum of its proper divisors (3503785).

6688983 is a wasteful number, since it uses less digits than its factorization.

6688983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318533.

The product of its digits is 497664, while the sum is 48.

The square root of 6688983 is about 2586.3068263452. The cubic root of 6688983 is about 188.4169766212.

The spelling of 6688983 in words is "six million, six hundred eighty-eight thousand, nine hundred eighty-three".