628298 has 8 divisors (see below), whose sum is σ = 1028160. Its totient is φ = 285580.

The previous prime is 628289. The next prime is 628301. The reversal of 628298 is 892826.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

628298 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, 14258 + ... + 14301.

It is an arithmetic number, because the mean of its divisors is an integer number (128520).

2⁶²⁸²⁹⁸ is an apocalyptic number.

628298 is a deficient number, since it is larger than the sum of its proper divisors (399862).

628298 is a wasteful number, since it uses less digits than its factorization.

628298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28572.

The product of its digits is 13824, while the sum is 35.

The square root of 628298 is about 792.6525089849. The cubic root of 628298 is about 85.6489202710.

The spelling of 628298 in words is "six hundred twenty-eight thousand, two hundred ninety-eight".