628704608 has 96 divisors (see below), whose sum is σ = 1512774144. Its totient is φ = 251062272.

The previous prime is 628704551. The next prime is 628704611. The reversal of 628704608 is 806407826.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 406685 + ... + 408227.

It is an arithmetic number, because the mean of its divisors is an integer number (15758064).

Almost surely, 2^628704608 is an apocalyptic number.

628704608 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628704608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (756387072).

628704608 is an abundant number, since it is smaller than the sum of its proper divisors (884069536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

628704608 is a wasteful number, since it uses less digits than its factorization.

628704608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1684 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 628704608 is about 25073.9826912280. The cubic root of 628704608 is about 856.6739241127.

The spelling of 628704608 in words is "six hundred twenty-eight million, seven hundred four thousand, six hundred eight".