628710 has 32 divisors (see below), whose sum is σ = 1589760. Its totient is φ = 158688.

The previous prime is 628709. The next prime is 628721. The reversal of 628710 is 17826.

It is a nialpdrome in base 15.

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 628710.

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, 19 + ... + 1121.

It is an arithmetic number, because the mean of its divisors is an integer number (49680).

2⁶²⁸⁷¹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 628710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794880).

628710 is an abundant number, since it is smaller than the sum of its proper divisors (961050).

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

628710 is a wasteful number, since it uses less digits than its factorization.

628710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 628710 is about 792.9123532901. The cubic root of 628710 is about 85.6676373155.

The spelling of 628710 in words is "six hundred twenty-eight thousand, seven hundred ten".