628283 has 4 divisors (see below), whose sum is σ = 630168. Its totient is φ = 626400.

The previous prime is 628267. The next prime is 628289. The reversal of 628283 is 382826.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 382826 = 2 ⋅191413.

It is a cyclic number.

It is not a de Polignac number, because 628283 - 2⁴ = 628267 is a prime.

It is a Duffinian number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293 + ... + 1158.

It is an arithmetic number, because the mean of its divisors is an integer number (157542).

2⁶²⁸²⁸³ is an apocalyptic number.

628283 is a deficient number, since it is larger than the sum of its proper divisors (1885).

628283 is a wasteful number, since it uses less digits than its factorization.

628283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1884.

The product of its digits is 4608, while the sum is 29.

The square root of 628283 is about 792.6430470268. The cubic root of 628283 is about 85.6482386709.

The spelling of 628283 in words is "six hundred twenty-eight thousand, two hundred eighty-three".