6689606 has 32 divisors (see below), whose sum is σ = 12648960. Its totient is φ = 2599080.

The previous prime is 6689593. The next prime is 6689611. The reversal of 6689606 is 6069866.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18455 + ... + 18813.

It is an arithmetic number, because the mean of its divisors is an integer number (395280).

Almost surely, 2^6689606 is an apocalyptic number.

6689606 is a deficient number, since it is larger than the sum of its proper divisors (5959354).

6689606 is a wasteful number, since it uses less digits than its factorization.

6689606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 6689606 is about 2586.4272655538. The cubic root of 6689606 is about 188.4228260472.

The spelling of 6689606 in words is "six million, six hundred eighty-nine thousand, six hundred six".