8245239 has 4 divisors (see below), whose sum is σ = 10993656. Its totient is φ = 5496824.

The previous prime is 8245231. The next prime is 8245241. The reversal of 8245239 is 9325428.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8245239 - 2³ = 8245231 is a prime.

It is a d-powerful number, because it can be written as 8³ + 2⁷ + 4¹¹ + 5⁹ + 2²¹ + 3² + 9 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8245231) 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 3 ways as a sum of consecutive naturals, for example, 1374204 + ... + 1374209.

It is an arithmetic number, because the mean of its divisors is an integer number (2748414).

Almost surely, 2^8245239 is an apocalyptic number.

8245239 is a deficient number, since it is larger than the sum of its proper divisors (2748417).

8245239 is a wasteful number, since it uses less digits than its factorization.

8245239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2748416.

The product of its digits is 17280, while the sum is 33.

The square root of 8245239 is about 2871.4524199436. The cubic root of 8245239 is about 202.0231241704.

The spelling of 8245239 in words is "eight million, two hundred forty-five thousand, two hundred thirty-nine".