628056 has 96 divisors (see below), whose sum is σ = 2031120. Its totient is φ = 172800.

The previous prime is 628051. The next prime is 628057. The reversal of 628056 is 650826.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628051) by changing a digit.

628056 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 23 ways as a sum of consecutive naturals, for example, 10266 + ... + 10326.

2⁶²⁸⁰⁵⁶ is an apocalyptic number.

628056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a pronic number, being equal to 792×793.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1015560).

628056 is an abundant number, since it is smaller than the sum of its proper divisors (1403064).

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

628056 is a wasteful number, since it uses less digits than its factorization.

628056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 628056 is about 792.4998422713. The cubic root of 628056 is about 85.6379224640.

It can be divided in two parts, 6280 and 56, that added together give a palindrome (6336).

The spelling of 628056 in words is "six hundred twenty-eight thousand, fifty-six".