7065865 has 4 divisors (see below), whose sum is σ = 8479044. Its totient is φ = 5652688.

The previous prime is 7065847. The next prime is 7065871. The reversal of 7065865 is 5685607.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3013696 + 4052169 = 1736^2 + 2013^2 .

It is a cyclic number.

It is not a de Polignac number, because 7065865 - 2⁵ = 7065833 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 706582 + ... + 706591.

It is an arithmetic number, because the mean of its divisors is an integer number (2119761).

Almost surely, 2^7065865 is an apocalyptic number.

It is an amenable number.

7065865 is a deficient number, since it is larger than the sum of its proper divisors (1413179).

7065865 is a wasteful number, since it uses less digits than its factorization.

7065865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413178.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 7065865 is about 2658.1694829337. The cubic root of 7065865 is about 191.8912234688.

The spelling of 7065865 in words is "seven million, sixty-five thousand, eight hundred sixty-five".