628580339 has 2 divisors, whose sum is σ = 628580340. Its totient is φ = 628580338.

The previous prime is 628580299. The next prime is 628580347. The reversal of 628580339 is 933085826.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-628580339 is a prime.

It is a super-2 number, since 2×628580339² = 790226485154709842, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 628580339.

It is not a weakly prime, because it can be changed into another prime (628580369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314290169 + 314290170.

It is an arithmetic number, because the mean of its divisors is an integer number (314290170).

Almost surely, 2^628580339 is an apocalyptic number.

628580339 is a deficient number, since it is larger than the sum of its proper divisors (1).

628580339 is an equidigital number, since it uses as much as digits as its factorization.

628580339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The square root of 628580339 is about 25071.5045220665. The cubic root of 628580339 is about 856.6174773461.

The spelling of 628580339 in words is "six hundred twenty-eight million, five hundred eighty thousand, three hundred thirty-nine".