6689055 has 8 divisors (see below), whose sum is σ = 10702512. Its totient is φ = 3567488.

The previous prime is 6689047. The next prime is 6689069. The reversal of 6689055 is 5509866.

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 6689055 - 2³ = 6689047 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 222954 + ... + 222983.

It is an arithmetic number, because the mean of its divisors is an integer number (1337814).

Almost surely, 2^6689055 is an apocalyptic number.

6689055 is a deficient number, since it is larger than the sum of its proper divisors (4013457).

6689055 is a wasteful number, since it uses less digits than its factorization.

6689055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445945.

The product of its (nonzero) digits is 64800, while the sum is 39.

The square root of 6689055 is about 2586.3207457699. The cubic root of 6689055 is about 188.4176526569.

The spelling of 6689055 in words is "six million, six hundred eighty-nine thousand, fifty-five".