628463629 has 2 divisors, whose sum is σ = 628463630. Its totient is φ = 628463628.

The previous prime is 628463617. The next prime is 628463659. The reversal of 628463629 is 926364826.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 537776100 + 90687529 = 23190^2 + 9523^2 .

It is a cyclic number.

It is not a de Polignac number, because 628463629 - 2⁹ = 628463117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (628463659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 314231814 + 314231815.

It is an arithmetic number, because the mean of its divisors is an integer number (314231815).

Almost surely, 2^628463629 is an apocalyptic number.

It is an amenable number.

628463629 is a deficient number, since it is larger than the sum of its proper divisors (1).

628463629 is an equidigital number, since it uses as much as digits as its factorization.

628463629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 46.

The square root of 628463629 is about 25069.1768712098. The cubic root of 628463629 is about 856.5644573327.

The spelling of 628463629 in words is "six hundred twenty-eight million, four hundred sixty-three thousand, six hundred twenty-nine".