6678648 has 96 divisors (see below), whose sum is σ = 19562400. Its totient is φ = 2052864.

The previous prime is 6678647. The next prime is 6678667. The reversal of 6678648 is 8468766.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6678641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61218 + ... + 61326.

It is an arithmetic number, because the mean of its divisors is an integer number (203775).

Almost surely, 2^6678648 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 6678648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9781200).

6678648 is an abundant number, since it is smaller than the sum of its proper divisors (12883752).

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

6678648 is a wasteful number, since it uses less digits than its factorization.

6678648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 174 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 6678648 is about 2584.3080311759. The cubic root of 6678648 is about 188.3198869630.

The spelling of 6678648 in words is "six million, six hundred seventy-eight thousand, six hundred forty-eight".