6670138 has 16 divisors (see below), whose sum is σ = 10725120. Its totient is φ = 3103056.

The previous prime is 6670109. The next prime is 6670187. The reversal of 6670138 is 8310766.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258 + ... + 3661.

It is an arithmetic number, because the mean of its divisors is an integer number (670320).

Almost surely, 2^6670138 is an apocalyptic number.

6670138 is a deficient number, since it is larger than the sum of its proper divisors (4054982).

6670138 is a wasteful number, since it uses less digits than its factorization.

6670138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3981.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 6670138 is about 2582.6610307975. The cubic root of 6670138 is about 188.2398666054.

The spelling of 6670138 in words is "six million, six hundred seventy thousand, one hundred thirty-eight".