6688982 has 4 divisors (see below), whose sum is σ = 10033476. Its totient is φ = 3344490.

The previous prime is 6688967. The next prime is 6688999. The reversal of 6688982 is 2898866.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1672244 + ... + 1672247.

It is an arithmetic number, because the mean of its divisors is an integer number (2508369).

Almost surely, 2^6688982 is an apocalyptic number.

6688982 is a deficient number, since it is larger than the sum of its proper divisors (3344494).

6688982 is a wasteful number, since it uses less digits than its factorization.

6688982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344493.

The product of its digits is 331776, while the sum is 47.

The square root of 6688982 is about 2586.3066330194. The cubic root of 6688982 is about 188.4169672318.

The spelling of 6688982 in words is "six million, six hundred eighty-eight thousand, nine hundred eighty-two".