628913568 has 96 divisors (see below), whose sum is σ = 1724829120. Its totient is φ = 200448000.

The previous prime is 628913543. The next prime is 628913581. The reversal of 628913568 is 865319826.

It is a happy number.

628913568 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208068 + ... + 211068.

It is an arithmetic number, because the mean of its divisors is an integer number (17966970).

Almost surely, 2^628913568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628913568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862414560).

628913568 is an abundant number, since it is smaller than the sum of its proper divisors (1095915552).

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

628913568 is a wasteful number, since it uses less digits than its factorization.

628913568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3110 (or 3102 counting only the distinct ones).

The product of its digits is 622080, while the sum is 48.

The square root of 628913568 is about 25078.1492140070. The cubic root of 628913568 is about 856.7688233453.

The spelling of 628913568 in words is "six hundred twenty-eight million, nine hundred thirteen thousand, five hundred sixty-eight".