6689088 has 168 divisors, whose sum is σ = 23164800. Its totient is φ = 1886976.

The previous prime is 6689069. The next prime is 6689099. The reversal of 6689088 is 8809866.

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84633 + ... + 84711.

Almost surely, 2^6689088 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6689088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11582400).

6689088 is an abundant number, since it is smaller than the sum of its proper divisors (16475712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6689088 is a wasteful number, since it uses less digits than its factorization.

6689088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114 (or 91 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The square root of 6689088 is about 2586.3271254812. The cubic root of 6689088 is about 188.4179625050.

The spelling of 6689088 in words is "six million, six hundred eighty-nine thousand, eighty-eight".