8228945 has 8 divisors (see below), whose sum is σ = 9917160. Its totient is φ = 6554880.

The previous prime is 8228903. The next prime is 8228947. The reversal of 8228945 is 5498228.

It can be written as a sum of positive squares in 4 ways, for example, as 1721344 + 6507601 = 1312^2 + 2551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-8228945 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8228899 and 8228908.

It is not an unprimeable number, because it can be changed into a prime (8228947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2210 + ... + 4619.

It is an arithmetic number, because the mean of its divisors is an integer number (1239645).

Almost surely, 2^8228945 is an apocalyptic number.

It is an amenable number.

8228945 is a deficient number, since it is larger than the sum of its proper divisors (1688215).

8228945 is a wasteful number, since it uses less digits than its factorization.

8228945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7075.

The product of its digits is 46080, while the sum is 38.

The square root of 8228945 is about 2868.6137767221. The cubic root of 8228945 is about 201.8899590176.

The spelling of 8228945 in words is "eight million, two hundred twenty-eight thousand, nine hundred forty-five".