9661228 has 12 divisors (see below), whose sum is σ = 16960552. Its totient is φ = 4815360.

The previous prime is 9661207. The next prime is 9661231. The reversal of 9661228 is 8221669.

It is a happy number.

9661228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 9661193 and 9661202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2325 + ... + 4972.

Almost surely, 2^9661228 is an apocalyptic number.

It is an amenable number.

9661228 is a deficient number, since it is larger than the sum of its proper divisors (7299324).

9661228 is a wasteful number, since it uses less digits than its factorization.

9661228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7632 (or 7630 counting only the distinct ones).

The product of its digits is 10368, while the sum is 34.

The square root of 9661228 is about 3108.2515985679. The cubic root of 9661228 is about 212.9825931538.

It can be divided in two parts, 9661 and 228, that added together give a palindrome (9889).

The spelling of 9661228 in words is "nine million, six hundred sixty-one thousand, two hundred twenty-eight".