6858656 has 48 divisors (see below), whose sum is σ = 15696576. Its totient is φ = 2889216.

The previous prime is 6858647. The next prime is 6858661. The reversal of 6858656 is 6568586.

It is a nialpdrome in base 14.

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, 14780 + ... + 15236.

It is an arithmetic number, because the mean of its divisors is an integer number (327012).

Almost surely, 2^6858656 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 6858656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7848288).

6858656 is an abundant number, since it is smaller than the sum of its proper divisors (8837920).

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

6858656 is a wasteful number, since it uses less digits than its factorization.

6858656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541 (or 533 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The square root of 6858656 is about 2618.9035873816. The cubic root of 6858656 is about 189.9968235849.

The spelling of 6858656 in words is "six million, eight hundred fifty-eight thousand, six hundred fifty-six".