7006666 has 16 divisors (see below), whose sum is σ = 10834560. Its totient is φ = 3396640.

The previous prime is 7006639. The next prime is 7006667. The reversal of 7006666 is 6666007.

It is a happy number.

7006666 is a modest number, since divided by 6666 gives 700 as remainder.

It is not an unprimeable number, because it can be changed into a prime (7006667) by changing a digit.

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, 12030 + ... + 12598.

It is an arithmetic number, because the mean of its divisors is an integer number (677160).

Almost surely, 2^7006666 is an apocalyptic number.

7006666 is a deficient number, since it is larger than the sum of its proper divisors (3827894).

7006666 is a wasteful number, since it uses less digits than its factorization.

7006666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 7006666 is about 2647.0107668840. The cubic root of 7006666 is about 191.3538209138.

The spelling of 7006666 in words is "seven million, six thousand, six hundred sixty-six".