7668137 has 2 divisors, whose sum is σ = 7668138. Its totient is φ = 7668136.

The previous prime is 7668113. The next prime is 7668149. The reversal of 7668137 is 7318667.

7668137 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4791721 + 2876416 = 2189^2 + 1696^2 .

It is a cyclic number.

It is not a de Polignac number, because 7668137 - 2¹⁰ = 7667113 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7668137.

It is not a weakly prime, because it can be changed into another prime (7668197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3834068 + 3834069.

It is an arithmetic number, because the mean of its divisors is an integer number (3834069).

Almost surely, 2^7668137 is an apocalyptic number.

It is an amenable number.

7668137 is a deficient number, since it is larger than the sum of its proper divisors (1).

7668137 is an equidigital number, since it uses as much as digits as its factorization.

7668137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 38.

The square root of 7668137 is about 2769.1401192428. The cubic root of 7668137 is about 197.1953279233.

The spelling of 7668137 in words is "seven million, six hundred sixty-eight thousand, one hundred thirty-seven".