628003 has 4 divisors (see below), whose sum is σ = 630040. Its totient is φ = 625968.

The previous prime is 627973. The next prime is 628013. The reversal of 628003 is 300826.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300826 = 2 ⋅150413.

It is a cyclic number.

It is not a de Polignac number, because 628003 - 2⁹ = 627491 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (628013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450 + ... + 1207.

It is an arithmetic number, because the mean of its divisors is an integer number (157510).

2⁶²⁸⁰⁰³ is an apocalyptic number.

628003 is a deficient number, since it is larger than the sum of its proper divisors (2037).

628003 is a wasteful number, since it uses less digits than its factorization.

628003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 628003 is about 792.4664030733. The cubic root of 628003 is about 85.6355134763.

Adding to 628003 its reverse (300826), we get a palindrome (928829).

The spelling of 628003 in words is "six hundred twenty-eight thousand, three".