8561228 has 24 divisors (see below), whose sum is σ = 16405200. Its totient is φ = 3885120.

The previous prime is 8561213. The next prime is 8561237. The reversal of 8561228 is 8221658.

It is a junction number, because it is equal to n+sod(n) for n = 8561194 and 8561203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1823 + ... + 4521.

It is an arithmetic number, because the mean of its divisors is an integer number (683550).

Almost surely, 2^8561228 is an apocalyptic number.

It is an amenable number.

8561228 is a deficient number, since it is larger than the sum of its proper divisors (7843972).

8561228 is a wasteful number, since it uses less digits than its factorization.

8561228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777 (or 2775 counting only the distinct ones).

The product of its digits is 7680, while the sum is 32.

The square root of 8561228 is about 2925.9576210191. The cubic root of 8561228 is about 204.5716058924.

The spelling of 8561228 in words is "eight million, five hundred sixty-one thousand, two hundred twenty-eight".