6670906 has 16 divisors (see below), whose sum is σ = 11041920. Its totient is φ = 2997280.

The previous prime is 6670903. The next prime is 6670933. The reversal of 6670906 is 6090766.

6670906 = 5² + 6² + ... + 271².

It is not an unprimeable number, because it can be changed into a prime (6670901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255 + ... + 3661.

It is an arithmetic number, because the mean of its divisors is an integer number (690120).

Almost surely, 2^6670906 is an apocalyptic number.

6670906 is a deficient number, since it is larger than the sum of its proper divisors (4371014).

6670906 is a wasteful number, since it uses less digits than its factorization.

6670906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3509.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 6670906 is about 2582.8097103736. The cubic root of 6670906 is about 188.2470909771.

The spelling of 6670906 in words is "six million, six hundred seventy thousand, nine hundred six".