6628073 has 2 divisors, whose sum is σ = 6628074. Its totient is φ = 6628072.

The previous prime is 6628057. The next prime is 6628087. The reversal of 6628073 is 3708266.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6620329 + 7744 = 2573^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 6628073 - 2⁴ = 6628057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (6628033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3314036 + 3314037.

It is an arithmetic number, because the mean of its divisors is an integer number (3314037).

Almost surely, 2^6628073 is an apocalyptic number.

It is an amenable number.

6628073 is a deficient number, since it is larger than the sum of its proper divisors (1).

6628073 is an equidigital number, since it uses as much as digits as its factorization.

6628073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 6628073 is about 2574.5044183299. The cubic root of 6628073 is about 187.8433223823.

The spelling of 6628073 in words is "six million, six hundred twenty-eight thousand, seventy-three".