6668928 has 96 divisors (see below), whose sum is σ = 21958560. Its totient is φ = 1903104.

The previous prime is 6668911. The next prime is 6668939. The reversal of 6668928 is 8298666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7651 + ... + 8477.

It is an arithmetic number, because the mean of its divisors is an integer number (228735).

Almost surely, 2^6668928 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 6668928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10979280).

6668928 is an abundant number, since it is smaller than the sum of its proper divisors (15289632).

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

6668928 is a wasteful number, since it uses less digits than its factorization.

6668928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 839 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 6668928 is about 2582.4267656605. The cubic root of 6668928 is about 188.2284833320.

The spelling of 6668928 in words is "six million, six hundred sixty-eight thousand, nine hundred twenty-eight".