6689120 has 48 divisors (see below), whose sum is σ = 16003008. Its totient is φ = 2641920.

The previous prime is 6689117. The next prime is 6689131. The reversal of 6689120 is 219866.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15305 + ... + 15735.

It is an arithmetic number, because the mean of its divisors is an integer number (333396).

Almost surely, 2^6689120 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 6689120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8001504).

6689120 is an abundant number, since it is smaller than the sum of its proper divisors (9313888).

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

6689120 is a wasteful number, since it uses less digits than its factorization.

6689120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 535 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 6689120 is about 2586.3333118529. Note that the first 4 decimals coincide. The cubic root of 6689120 is about 188.4182629627.

The spelling of 6689120 in words is "six million, six hundred eighty-nine thousand, one hundred twenty".