628066297 has 2 divisors, whose sum is σ = 628066298. Its totient is φ = 628066296.

The previous prime is 628066291. The next prime is 628066301. The reversal of 628066297 is 792660826.

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., 606341376 + 21724921 = 24624^2 + 4661^2 .

It is a cyclic number.

It is not a de Polignac number, because 628066297 - 2³ = 628066289 is a prime.

It is not a weakly prime, because it can be changed into another prime (628066291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314033148 + 314033149.

It is an arithmetic number, because the mean of its divisors is an integer number (314033149).

Almost surely, 2^628066297 is an apocalyptic number.

It is an amenable number.

628066297 is a deficient number, since it is larger than the sum of its proper divisors (1).

628066297 is an equidigital number, since it uses as much as digits as its factorization.

628066297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 628066297 is about 25061.2509065290. The cubic root of 628066297 is about 856.3839047371.

The spelling of 628066297 in words is "six hundred twenty-eight million, sixty-six thousand, two hundred ninety-seven".