8172065 has 16 divisors (see below), whose sum is σ = 11045376. Its totient is φ = 5750400.

The previous prime is 8172049. The next prime is 8172077. The reversal of 8172065 is 5602718.

8172065 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 8172065 - 2⁴ = 8172049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692 + ... + 4101.

It is an arithmetic number, because the mean of its divisors is an integer number (690336).

Almost surely, 2^8172065 is an apocalyptic number.

It is an amenable number.

8172065 is a deficient number, since it is larger than the sum of its proper divisors (2873311).

8172065 is a wasteful number, since it uses less digits than its factorization.

8172065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4840.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 8172065 is about 2858.6823887938. The cubic root of 8172065 is about 201.4237161136.

It can be divided in two parts, 817 and 2065, that added together give a palindrome (2882).

The spelling of 8172065 in words is "eight million, one hundred seventy-two thousand, sixty-five".