8620228 has 6 divisors (see below), whose sum is σ = 15085406. Its totient is φ = 4310112.

The previous prime is 8620219. The next prime is 8620231. The reversal of 8620228 is 8220268.

It is a happy number.

8620228 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 4588164 + 4032064 = 2142^2 + 2008^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8620196 and 8620205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077525 + ... + 1077532.

Almost surely, 2^8620228 is an apocalyptic number.

It is an amenable number.

8620228 is a deficient number, since it is larger than the sum of its proper divisors (6465178).

8620228 is a wasteful number, since it uses less digits than its factorization.

8620228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155061 (or 2155059 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 8620228 is about 2936.0224794780. The cubic root of 8620228 is about 205.0404679181.

The spelling of 8620228 in words is "eight million, six hundred twenty thousand, two hundred twenty-eight".