6689056 has 48 divisors (see below), whose sum is σ = 14853888. Its totient is φ = 2937600.

The previous prime is 6689047. The next prime is 6689069. The reversal of 6689056 is 6509866.

It is a super-2 number, since 2×6689056² = 89486940342272, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 10606 + ... + 11218.

It is an arithmetic number, because the mean of its divisors is an integer number (309456).

Almost surely, 2^6689056 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 6689056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7426944).

6689056 is an abundant number, since it is smaller than the sum of its proper divisors (8164832).

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

6689056 is a wasteful number, since it uses less digits than its factorization.

6689056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 6689056 is about 2586.3209390948. The cubic root of 6689056 is about 188.4176620463.

The spelling of 6689056 in words is "six million, six hundred eighty-nine thousand, fifty-six".