628284 has 24 divisors (see below), whose sum is σ = 1502928. Its totient is φ = 204160.

The previous prime is 628267. The next prime is 628289. The reversal of 628284 is 482826.

It is a happy number.

628284 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628289) by changing a digit.

628284 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147 + ... + 1130.

It is an arithmetic number, because the mean of its divisors is an integer number (62622).

2⁶²⁸²⁸⁴ is an apocalyptic number.

It is an amenable number.

628284 is an abundant number, since it is smaller than the sum of its proper divisors (874644).

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

628284 is a wasteful number, since it uses less digits than its factorization.

628284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325 (or 1323 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 628284 is about 792.6436778276. The cubic root of 628284 is about 85.6482841112.

The spelling of 628284 in words is "six hundred twenty-eight thousand, two hundred eighty-four".