6688337 has 2 divisors, whose sum is σ = 6688338. Its totient is φ = 6688336.

The previous prime is 6688313. The next prime is 6688351. The reversal of 6688337 is 7338866.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3444736 + 3243601 = 1856^2 + 1801^2 .

It is a cyclic number.

It is not a de Polignac number, because 6688337 - 2⁶ = 6688273 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 6688294 and 6688303.

It is not a weakly prime, because it can be changed into another prime (6688307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3344168 + 3344169.

It is an arithmetic number, because the mean of its divisors is an integer number (3344169).

Almost surely, 2^6688337 is an apocalyptic number.

It is an amenable number.

6688337 is a deficient number, since it is larger than the sum of its proper divisors (1).

6688337 is an equidigital number, since it uses as much as digits as its factorization.

6688337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The square root of 6688337 is about 2586.1819348221. The cubic root of 6688337 is about 188.4109108618.

The spelling of 6688337 in words is "six million, six hundred eighty-eight thousand, three hundred thirty-seven".