628625968 has 20 divisors (see below), whose sum is σ = 1218357288. Its totient is φ = 314211200.

The previous prime is 628625939. The next prime is 628625993. The reversal of 628625968 is 869526826.

It is a super-3 number, since 3×628625968³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80643 + ... + 88093.

Almost surely, 2^628625968 is an apocalyptic number.

It is an amenable number.

628625968 is a deficient number, since it is larger than the sum of its proper divisors (589731320).

628625968 is a wasteful number, since it uses less digits than its factorization.

628625968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12732 (or 12726 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 52.

The square root of 628625968 is about 25072.4144828535. The cubic root of 628625968 is about 856.6382042926.

The spelling of 628625968 in words is "six hundred twenty-eight million, six hundred twenty-five thousand, nine hundred sixty-eight".