628111 has 12 divisors (see below), whose sum is σ = 718200. Its totient is φ = 548240.

The previous prime is 628097. The next prime is 628127. The reversal of 628111 is 111826.

It is not a de Polignac number, because 628111 - 2¹¹ = 626063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (628171) 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 11 ways as a sum of consecutive naturals, for example, 3420 + ... + 3598.

It is an arithmetic number, because the mean of its divisors is an integer number (59850).

2⁶²⁸¹¹¹ is an apocalyptic number.

628111 is a deficient number, since it is larger than the sum of its proper divisors (90089).

628111 is a wasteful number, since it uses less digits than its factorization.

628111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230 (or 219 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The square root of 628111 is about 792.5345418340. The cubic root of 628111 is about 85.6404222136.

Adding to 628111 its reverse (111826), we get a palindrome (739937).

The spelling of 628111 in words is "six hundred twenty-eight thousand, one hundred eleven".