2065865 has 8 divisors (see below), whose sum is σ = 2490048. Its totient is φ = 1645360.

The previous prime is 2065841. The next prime is 2065879. The reversal of 2065865 is 5685602.

It is a happy number.

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

It is not a de Polignac number, because 2065865 - 2⁶ = 2065801 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 530 + ... + 2100.

It is an arithmetic number, because the mean of its divisors is an integer number (311256).

2^2065865 is an apocalyptic number.

It is an amenable number.

2065865 is a deficient number, since it is larger than the sum of its proper divisors (424183).

2065865 is a wasteful number, since it uses less digits than its factorization.

2065865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1839.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2065865 is about 1437.3117268011. The cubic root of 2065865 is about 127.3602724055.

The spelling of 2065865 in words is "two million, sixty-five thousand, eight hundred sixty-five".