8307228 has 12 divisors (see below), whose sum is σ = 19383560. Its totient is φ = 2769072.

The previous prime is 8307223. The next prime is 8307239. The reversal of 8307228 is 8227038.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 8307195 and 8307204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8307223) 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, 346123 + ... + 346146.

Almost surely, 2^8307228 is an apocalyptic number.

It is an amenable number.

8307228 is an abundant number, since it is smaller than the sum of its proper divisors (11076332).

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

8307228 is a wasteful number, since it uses less digits than its factorization.

8307228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692276 (or 692274 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 8307228 is about 2882.2262229048. The cubic root of 8307228 is about 202.5281411889.

The spelling of 8307228 in words is "eight million, three hundred seven thousand, two hundred twenty-eight".