628310 has 16 divisors (see below), whose sum is σ = 1146096. Its totient is φ = 247968.

The previous prime is 628301. The next prime is 628319. The reversal of 628310 is 13826.

628310 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (628301) and next prime (628319).

It is a super-2 number, since 2×628310² = 789546912200, which contains 22 as substring.

It is a Curzon number.

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 628310.

It is not an unprimeable number, because it can be changed into a prime (628319) by changing a digit.

628310 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 7 ways as a sum of consecutive naturals, for example, 452 + ... + 1208.

It is an arithmetic number, because the mean of its divisors is an integer number (71631).

2⁶²⁸³¹⁰ is an apocalyptic number.

628310 is a deficient number, since it is larger than the sum of its proper divisors (517786).

628310 is a wasteful number, since it uses less digits than its factorization.

628310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 628310 is about 792.6600784700. The cubic root of 628310 is about 85.6494655433.

The spelling of 628310 in words is "six hundred twenty-eight thousand, three hundred ten".