628203049 has 2 divisors, whose sum is σ = 628203050. Its totient is φ = 628203048.

The previous prime is 628202977. The next prime is 628203067. The reversal of 628203049 is 940302826.

628203049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429815824 + 198387225 = 20732^2 + 14085^2 .

It is a cyclic number.

It is not a de Polignac number, because 628203049 - 2⁹ = 628202537 is a prime.

It is not a weakly prime, because it can be changed into another prime (628203449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314101524 + 314101525.

It is an arithmetic number, because the mean of its divisors is an integer number (314101525).

Almost surely, 2^628203049 is an apocalyptic number.

It is an amenable number.

628203049 is a deficient number, since it is larger than the sum of its proper divisors (1).

628203049 is an equidigital number, since it uses as much as digits as its factorization.

628203049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 628203049 is about 25063.9791134608. The cubic root of 628203049 is about 856.4460551361.

The spelling of 628203049 in words is "six hundred twenty-eight million, two hundred three thousand, forty-nine".