6666772 has 12 divisors (see below), whose sum is σ = 13333600. Its totient is φ = 2857176.

The previous prime is 6666769. The next prime is 6666791. The reversal of 6666772 is 2776666.

6666772 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

6666772 is an admirable number.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119022 + ... + 119077.

Almost surely, 2^6666772 is an apocalyptic number.

It is an amenable number.

6666772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6666772 is a wasteful number, since it uses less digits than its factorization.

6666772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238110 (or 238108 counting only the distinct ones).

The product of its digits is 127008, while the sum is 40.

The square root of 6666772 is about 2582.0092951033. The cubic root of 6666772 is about 188.2081969956.

The spelling of 6666772 in words is "six million, six hundred sixty-six thousand, seven hundred seventy-two".