617228 has 12 divisors (see below), whose sum is σ = 1127280. Its totient is φ = 295152.

The previous prime is 617191. The next prime is 617231. The reversal of 617228 is 822716.

It is a junction number, because it is equal to n+sod(n) for n = 617197 and 617206.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 617228.

It is an unprimeable number.

617228 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3263 + ... + 3446.

It is an arithmetic number, because the mean of its divisors is an integer number (93940).

2⁶¹⁷²²⁸ is an apocalyptic number.

It is an amenable number.

617228 is a deficient number, since it is larger than the sum of its proper divisors (510052).

617228 is a wasteful number, since it uses less digits than its factorization.

617228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6736 (or 6734 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 617228 is about 785.6385937567. The cubic root of 617228 is about 85.1429198813.

The spelling of 617228 in words is "six hundred seventeen thousand, two hundred twenty-eight".