628048777 has 2 divisors, whose sum is σ = 628048778. Its totient is φ = 628048776.

The previous prime is 628048739. The next prime is 628048831. The reversal of 628048777 is 777840826.

It is a happy number.

628048777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326019136 + 302029641 = 18056^2 + 17379^2 .

It is a cyclic number.

It is not a de Polignac number, because 628048777 - 2¹⁵ = 628016009 is a 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 628048777.

It is not a weakly prime, because it can be changed into another prime (628048717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314024388 + 314024389.

It is an arithmetic number, because the mean of its divisors is an integer number (314024389).

Almost surely, 2^628048777 is an apocalyptic number.

It is an amenable number.

628048777 is a deficient number, since it is larger than the sum of its proper divisors (1).

628048777 is an equidigital number, since it uses as much as digits as its factorization.

628048777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1053696, while the sum is 49.

The square root of 628048777 is about 25060.9013604858. The cubic root of 628048777 is about 856.3759416788.

The spelling of 628048777 in words is "six hundred twenty-eight million, forty-eight thousand, seven hundred seventy-seven".