8224385 has 12 divisors (see below), whose sum is σ = 10687932. Its totient is φ = 6072768.

The previous prime is 8224369. The next prime is 8224417. The reversal of 8224385 is 5834228.

It can be written as a sum of positive squares in 6 ways, for example, as 512656 + 7711729 = 716^2 + 2777^2 .

It is not a de Polignac number, because 8224385 - 2⁴ = 8224369 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4022 + ... + 5711.

It is an arithmetic number, because the mean of its divisors is an integer number (890661).

Almost surely, 2^8224385 is an apocalyptic number.

It is an amenable number.

8224385 is a deficient number, since it is larger than the sum of its proper divisors (2463547).

8224385 is a wasteful number, since it uses less digits than its factorization.

8224385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9764 (or 9751 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The square root of 8224385 is about 2867.8188575989. The cubic root of 8224385 is about 201.8526602583.

It can be divided in two parts, 82243 and 85, that added together give a palindrome (82328).

The spelling of 8224385 in words is "eight million, two hundred twenty-four thousand, three hundred eighty-five".