6478648 has 32 divisors (see below), whose sum is σ = 13426560. Its totient is φ = 2906080.

The previous prime is 6478631. The next prime is 6478673. The reversal of 6478648 is 8468746.

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, 6861 + ... + 7747.

It is an arithmetic number, because the mean of its divisors is an integer number (419580).

Almost surely, 2^6478648 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 6478648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6713280).

6478648 is an abundant number, since it is smaller than the sum of its proper divisors (6947912).

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

6478648 is a wasteful number, since it uses less digits than its factorization.

6478648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987 (or 983 counting only the distinct ones).

The product of its digits is 258048, while the sum is 43.

The square root of 6478648 is about 2545.3188405385. The cubic root of 6478648 is about 186.4209834728.

The spelling of 6478648 in words is "six million, four hundred seventy-eight thousand, six hundred forty-eight".