628608 has 32 divisors (see below), whose sum is σ = 1670760. Its totient is φ = 209408.

The previous prime is 628591. The next prime is 628651. The reversal of 628608 is 806826.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 628608.

It is an unprimeable number.

628608 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435 + ... + 1202.

2⁶²⁸⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

628608 is an abundant number, since it is smaller than the sum of its proper divisors (1042152).

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

628608 is a wasteful number, since it uses less digits than its factorization.

628608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 628608 is about 792.8480308357. The cubic root of 628608 is about 85.6630042459.

The spelling of 628608 in words is "six hundred twenty-eight thousand, six hundred eight".