6645341 has 2 divisors, whose sum is σ = 6645342. Its totient is φ = 6645340.

The previous prime is 6645329. The next prime is 6645389. The reversal of 6645341 is 1435466.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4713241 + 1932100 = 2171^2 + 1390^2 .

It is a cyclic number.

It is not a de Polignac number, because 6645341 - 2¹⁸ = 6383197 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6645391) 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, 3322670 + 3322671.

It is an arithmetic number, because the mean of its divisors is an integer number (3322671).

Almost surely, 2^6645341 is an apocalyptic number.

It is an amenable number.

6645341 is a deficient number, since it is larger than the sum of its proper divisors (1).

6645341 is an equidigital number, since it uses as much as digits as its factorization.

6645341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 6645341 is about 2577.8558920157. The cubic root of 6645341 is about 188.0063092043.

The spelling of 6645341 in words is "six million, six hundred forty-five thousand, three hundred forty-one".