517228 has 12 divisors (see below), whose sum is σ = 911232. Its totient is φ = 256880.

The previous prime is 517217. The next prime is 517229. The reversal of 517228 is 822715.

It is not an unprimeable number, because it can be changed into a prime (517229) by changing a digit.

517228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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, 426 + ... + 1102.

It is an arithmetic number, because the mean of its divisors is an integer number (75936).

2⁵¹⁷²²⁸ is an apocalyptic number.

It is an amenable number.

517228 is a deficient number, since it is larger than the sum of its proper divisors (394004).

517228 is a wasteful number, since it uses less digits than its factorization.

517228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 870 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 517228 is about 719.1856505799. The cubic root of 517228 is about 80.2713701042.

The spelling of 517228 in words is "five hundred seventeen thousand, two hundred twenty-eight".