628000913 has 2 divisors, whose sum is σ = 628000914. Its totient is φ = 628000912.

The previous prime is 628000909. The next prime is 628000921. The reversal of 628000913 is 319000826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513339649 + 114661264 = 22657^2 + 10708^2 .

It is a cyclic number.

It is not a de Polignac number, because 628000913 - 2² = 628000909 is a prime.

It is not a weakly prime, because it can be changed into another prime (628000943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314000456 + 314000457.

It is an arithmetic number, because the mean of its divisors is an integer number (314000457).

Almost surely, 2^628000913 is an apocalyptic number.

It is an amenable number.

628000913 is a deficient number, since it is larger than the sum of its proper divisors (1).

628000913 is an equidigital number, since it uses as much as digits as its factorization.

628000913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 628000913 is about 25059.9463886099. The cubic root of 628000913 is about 856.3541861396.

The spelling of 628000913 in words is "six hundred twenty-eight million, nine hundred thirteen", and thus it is an aban number.