628896 has 24 divisors (see below), whose sum is σ = 1651104. Its totient is φ = 209600.

The previous prime is 628877. The next prime is 628909. The reversal of 628896 is 698826.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3180 + ... + 3371.

It is an arithmetic number, because the mean of its divisors is an integer number (68796).

2⁶²⁸⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

628896 is an abundant number, since it is smaller than the sum of its proper divisors (1022208).

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

628896 is a wasteful number, since it uses less digits than its factorization.

628896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6564 (or 6556 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 628896 is about 793.0296337464. The cubic root of 628896 is about 85.6760845643.

The spelling of 628896 in words is "six hundred twenty-eight thousand, eight hundred ninety-six".