628068317 has 2 divisors, whose sum is σ = 628068318. Its totient is φ = 628068316.

The previous prime is 628068271. The next prime is 628068347. The reversal of 628068317 is 713860826.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 493995076 + 134073241 = 22226^2 + 11579^2 .

It is a cyclic number.

It is not a de Polignac number, because 628068317 - 2¹⁴ = 628051933 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 (628068347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314034158 + 314034159.

It is an arithmetic number, because the mean of its divisors is an integer number (314034159).

Almost surely, 2^628068317 is an apocalyptic number.

It is an amenable number.

628068317 is a deficient number, since it is larger than the sum of its proper divisors (1).

628068317 is an equidigital number, since it uses as much as digits as its factorization.

628068317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 628068317 is about 25061.2912077570. The cubic root of 628068317 is about 856.3848228427.

The spelling of 628068317 in words is "six hundred twenty-eight million, sixty-eight thousand, three hundred seventeen".