628866713 has 16 divisors (see below), whose sum is σ = 683790336. Its totient is φ = 576610320.

The previous prime is 628866709. The next prime is 628866727. The reversal of 628866713 is 317668826.

It is a cyclic number.

It is not a de Polignac number, because 628866713 - 2² = 628866709 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (628866773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72170 + ... + 80412.

It is an arithmetic number, because the mean of its divisors is an integer number (42736896).

Almost surely, 2^628866713 is an apocalyptic number.

It is an amenable number.

628866713 is a deficient number, since it is larger than the sum of its proper divisors (54923623).

628866713 is a wasteful number, since it uses less digits than its factorization.

628866713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8404.

The product of its digits is 580608, while the sum is 47.

The square root of 628866713 is about 25077.2150168235. The cubic root of 628866713 is about 856.7475459646.

The spelling of 628866713 in words is "six hundred twenty-eight million, eight hundred sixty-six thousand, seven hundred thirteen".