7668911 has 2 divisors, whose sum is σ = 7668912. Its totient is φ = 7668910.

The previous prime is 7668901. The next prime is 7668919. The reversal of 7668911 is 1198667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7668911 - 2²² = 3474607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7668919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834455 + 3834456.

It is an arithmetic number, because the mean of its divisors is an integer number (3834456).

Almost surely, 2^7668911 is an apocalyptic number.

7668911 is a deficient number, since it is larger than the sum of its proper divisors (1).

7668911 is an equidigital number, since it uses as much as digits as its factorization.

7668911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 38.

The square root of 7668911 is about 2769.2798702912. The cubic root of 7668911 is about 197.2019624791.

The spelling of 7668911 in words is "seven million, six hundred sixty-eight thousand, nine hundred eleven".