7668757 has 2 divisors, whose sum is σ = 7668758. Its totient is φ = 7668756.

The previous prime is 7668709. The next prime is 7668823. The reversal of 7668757 is 7578667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6355441 + 1313316 = 2521^2 + 1146^2 .

It is a cyclic number.

It is not a de Polignac number, because 7668757 - 2⁷ = 7668629 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7668707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834378 + 3834379.

It is an arithmetic number, because the mean of its divisors is an integer number (3834379).

Almost surely, 2^7668757 is an apocalyptic number.

It is an amenable number.

7668757 is a deficient number, since it is larger than the sum of its proper divisors (1).

7668757 is an equidigital number, since it uses as much as digits as its factorization.

7668757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 493920, while the sum is 46.

The square root of 7668757 is about 2769.2520650891. The cubic root of 7668757 is about 197.2006424609.

The spelling of 7668757 in words is "seven million, six hundred sixty-eight thousand, seven hundred fifty-seven".