628113 has 4 divisors (see below), whose sum is σ = 837488. Its totient is φ = 418740.

The previous prime is 628097. The next prime is 628127. The reversal of 628113 is 311826.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 628113 - 2⁴ = 628097 is a prime.

It is a D-number.

It is a Duffinian number.

628113 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 628113.

It is not an unprimeable number, because it can be changed into a prime (628183) 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, 104683 + ... + 104688.

It is an arithmetic number, because the mean of its divisors is an integer number (209372).

2⁶²⁸¹¹³ is an apocalyptic number.

It is an amenable number.

628113 is a deficient number, since it is larger than the sum of its proper divisors (209375).

628113 is a wasteful number, since it uses less digits than its factorization.

628113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209374.

The product of its digits is 288, while the sum is 21.

The square root of 628113 is about 792.5358036076. The cubic root of 628113 is about 85.6405131109.

Adding to 628113 its reverse (311826), we get a palindrome (939939).

It can be divided in two parts, 628 and 113, that added together give a triangular number (741 = T₃₈).

The spelling of 628113 in words is "six hundred twenty-eight thousand, one hundred thirteen".