6870656 has 32 divisors (see below), whose sum is σ = 14744100. Its totient is φ = 3170304.

The previous prime is 6870653. The next prime is 6870673. The reversal of 6870656 is 6560786.

It can be written as a sum of positive squares in 2 ways, for example, as 6677056 + 193600 = 2584^2 + 440^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (6870653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401 + ... + 3728.

Almost surely, 2^6870656 is an apocalyptic number.

It is an amenable number.

6870656 is an abundant number, since it is smaller than the sum of its proper divisors (7873444).

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

6870656 is a wasteful number, since it uses less digits than its factorization.

6870656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4156 (or 4144 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 6870656 is about 2621.1936212344. The cubic root of 6870656 is about 190.1075660535.

The spelling of 6870656 in words is "six million, eight hundred seventy thousand, six hundred fifty-six".