6666670 has 8 divisors (see below), whose sum is σ = 12000024. Its totient is φ = 2666664.

The previous prime is 6666617. The next prime is 6666679. The reversal of 6666670 is 766666.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6666679) 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, 333324 + ... + 333343.

It is an arithmetic number, because the mean of its divisors is an integer number (1500003).

Almost surely, 2^6666670 is an apocalyptic number.

6666670 is a deficient number, since it is larger than the sum of its proper divisors (5333354).

6666670 is a wasteful number, since it uses less digits than its factorization.

6666670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666674.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 6666670 is about 2581.9895429688. The cubic root of 6666670 is about 188.2072371441.

The spelling of 6666670 in words is "six million, six hundred sixty-six thousand, six hundred seventy".