7668667 has 2 divisors, whose sum is σ = 7668668. Its totient is φ = 7668666.

The previous prime is 7668653. The next prime is 7668671.

7668667 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 7668667 - 2¹¹ = 7666619 is a prime.

It is not a weakly prime, because it can be changed into another prime (7668677) 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 as a sum of consecutive naturals, namely, 3834333 + 3834334.

It is an arithmetic number, because the mean of its divisors is an integer number (3834334).

Almost surely, 2^7668667 is an apocalyptic number.

7668667 is a deficient number, since it is larger than the sum of its proper divisors (1).

7668667 is an equidigital number, since it uses as much as digits as its factorization.

7668667 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 46.

The square root of 7668667 is about 2769.2358151663. The cubic root of 7668667 is about 197.1998710136.

The spelling of 7668667 in words is "seven million, six hundred sixty-eight thousand, six hundred sixty-seven".