872228 has 12 divisors (see below), whose sum is σ = 1744512. Its totient is φ = 373800.

The previous prime is 872227. The next prime is 872231. The reversal of 872228 is 822278.

872228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

872228 is an admirable number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 872228.

It is not an unprimeable number, because it can be changed into a prime (872227) 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, 15548 + ... + 15603.

It is an arithmetic number, because the mean of its divisors is an integer number (145376).

2⁸⁷²²²⁸ is an apocalyptic number.

It is an amenable number.

872228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872228 is a wasteful number, since it uses less digits than its factorization.

872228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31162 (or 31160 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 872228 is about 933.9314750023. The cubic root of 872228 is about 95.5454495251.

The spelling of 872228 in words is "eight hundred seventy-two thousand, two hundred twenty-eight".