8245215 has 24 divisors (see below), whose sum is σ = 15591888. Its totient is φ = 3997440.

The previous prime is 8245199. The next prime is 8245217. The reversal of 8245215 is 5125428.

It is a happy number.

8245215 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8245215 - 2⁴ = 8245199 is a prime.

It is a d-powerful number, because it can be written as 8 + 2²⁰ + 4¹⁰ + 5⁴ + 2²² + 1 + 5⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8245217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7834 + ... + 8823.

It is an arithmetic number, because the mean of its divisors is an integer number (649662).

Almost surely, 2^8245215 is an apocalyptic number.

8245215 is a deficient number, since it is larger than the sum of its proper divisors (7346673).

8245215 is a wasteful number, since it uses less digits than its factorization.

8245215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16679 (or 16676 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 8245215 is about 2871.4482408708. The cubic root of 8245215 is about 202.0229281558.

The spelling of 8245215 in words is "eight million, two hundred forty-five thousand, two hundred fifteen".