628243163 has 2 divisors, whose sum is σ = 628243164. Its totient is φ = 628243162.

The previous prime is 628243159. The next prime is 628243261. The reversal of 628243163 is 361342826.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 628243163 - 2² = 628243159 is a prime.

It is not a weakly prime, because it can be changed into another prime (628243103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314121581 + 314121582.

It is an arithmetic number, because the mean of its divisors is an integer number (314121582).

Almost surely, 2^628243163 is an apocalyptic number.

628243163 is a deficient number, since it is larger than the sum of its proper divisors (1).

628243163 is an equidigital number, since it uses as much as digits as its factorization.

628243163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 35.

The square root of 628243163 is about 25064.7793327609. The cubic root of 628243163 is about 856.4642842453.

Adding to 628243163 its reverse (361342826), we get a palindrome (989585989).

The spelling of 628243163 in words is "six hundred twenty-eight million, two hundred forty-three thousand, one hundred sixty-three".