6670856 has 8 divisors (see below), whose sum is σ = 12507870. Its totient is φ = 3335424.

The previous prime is 6670847. The next prime is 6670877. The reversal of 6670856 is 6580766.

It can be written as a sum of positive squares in only one way, i.e., 4268356 + 2402500 = 2066^2 + 1550^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 416921 + ... + 416936.

Almost surely, 2^6670856 is an apocalyptic number.

It is an amenable number.

6670856 is a deficient number, since it is larger than the sum of its proper divisors (5837014).

6670856 is a wasteful number, since it uses less digits than its factorization.

6670856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833863 (or 833859 counting only the distinct ones).

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

The square root of 6670856 is about 2582.8000309741. The cubic root of 6670856 is about 188.2466206573.

The spelling of 6670856 in words is "six million, six hundred seventy thousand, eight hundred fifty-six".