6686848 has 64 divisors (see below), whose sum is σ = 16156800. Its totient is φ = 2691072.

The previous prime is 6686843. The next prime is 6686857. The reversal of 6686848 is 8486866.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 6686798 and 6686807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6686843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15013 + ... + 15451.

It is an arithmetic number, because the mean of its divisors is an integer number (252450).

Almost surely, 2^6686848 is an apocalyptic number.

6686848 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6686848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8078400).

6686848 is an abundant number, since it is smaller than the sum of its proper divisors (9469952).

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

6686848 is a wasteful number, since it uses less digits than its factorization.

6686848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 465 counting only the distinct ones).

The product of its digits is 442368, while the sum is 46.

The square root of 6686848 is about 2585.8940426862. The cubic root of 6686848 is about 188.3969280801.

The spelling of 6686848 in words is "six million, six hundred eighty-six thousand, eight hundred forty-eight".