8065815 has 16 divisors (see below), whose sum is σ = 13255008. Its totient is φ = 4185216.

The previous prime is 8065793. The next prime is 8065819. The reversal of 8065815 is 5185608.

8065815 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 8065815 - 2⁶ = 8065751 is a prime.

It is a super-2 number, since 2×8065815² = 130114743228450, which contains 22 as substring.

8065815 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8065819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6712 + ... + 7821.

It is an arithmetic number, because the mean of its divisors is an integer number (828438).

Almost surely, 2^8065815 is an apocalyptic number.

8065815 is a deficient number, since it is larger than the sum of its proper divisors (5189193).

8065815 is a wasteful number, since it uses less digits than its factorization.

8065815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14578.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 8065815 is about 2840.0378518604. The cubic root of 8065815 is about 200.5469611373.

The spelling of 8065815 in words is "eight million, sixty-five thousand, eight hundred fifteen".