6679656 has 48 divisors (see below), whose sum is σ = 18273060. Its totient is φ = 2204160.

The previous prime is 6679639. The next prime is 6679661. The reversal of 6679656 is 6569766.

It can be written as a sum of positive squares in 2 ways, for example, as 5447556 + 1232100 = 2334^2 + 1110^2 .

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, 7726 + ... + 8546.

Almost surely, 2^6679656 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 6679656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9136530).

6679656 is an abundant number, since it is smaller than the sum of its proper divisors (11593404).

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

6679656 is a wasteful number, since it uses less digits than its factorization.

6679656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 946 (or 939 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 6679656 is about 2584.5030470092. The cubic root of 6679656 is about 188.3293607815.

The spelling of 6679656 in words is "six million, six hundred seventy-nine thousand, six hundred fifty-six".