8252815 has 4 divisors (see below), whose sum is σ = 9903384. Its totient is φ = 6602248.

The previous prime is 8252809. The next prime is 8252879. The reversal of 8252815 is 5182528.

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 8252815 - 2³ = 8252807 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 825277 + ... + 825286.

It is an arithmetic number, because the mean of its divisors is an integer number (2475846).

Almost surely, 2^8252815 is an apocalyptic number.

8252815 is a deficient number, since it is larger than the sum of its proper divisors (1650569).

8252815 is a wasteful number, since it uses less digits than its factorization.

8252815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650568.

The product of its digits is 6400, while the sum is 31.

The square root of 8252815 is about 2872.7713100767. The cubic root of 8252815 is about 202.0849804190.

The spelling of 8252815 in words is "eight million, two hundred fifty-two thousand, eight hundred fifteen".