8405065 has 8 divisors (see below), whose sum is σ = 10124928. Its totient is φ = 6698160.

The previous prime is 8405063. The next prime is 8405077. The reversal of 8405065 is 5605048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8405065 - 2¹ = 8405063 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8405063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1747 + ... + 4456.

It is an arithmetic number, because the mean of its divisors is an integer number (1265616).

Almost surely, 2^8405065 is an apocalyptic number.

It is an amenable number.

8405065 is a deficient number, since it is larger than the sum of its proper divisors (1719863).

8405065 is a wasteful number, since it uses less digits than its factorization.

8405065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6479.

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 8405065 is about 2899.1490130726. The cubic root of 8405065 is about 203.3201206739.

The spelling of 8405065 in words is "eight million, four hundred five thousand, sixty-five".