2065985 has 4 divisors (see below), whose sum is σ = 2479188. Its totient is φ = 1652784.

The previous prime is 2065967. The next prime is 2065991. The reversal of 2065985 is 5895602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5895602 = 2 ⋅2947801.

It can be written as a sum of positive squares in 2 ways, for example, as 1157776 + 908209 = 1076^2 + 953^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065985 - 2⁸ = 2065729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206594 + ... + 206603.

It is an arithmetic number, because the mean of its divisors is an integer number (619797).

2^2065985 is an apocalyptic number.

It is an amenable number.

2065985 is a deficient number, since it is larger than the sum of its proper divisors (413203).

2065985 is an equidigital number, since it uses as much as digits as its factorization.

2065985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413202.

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 2065985 is about 1437.3534707928. The cubic root of 2065985 is about 127.3627383518.

The spelling of 2065985 in words is "two million, sixty-five thousand, nine hundred eighty-five".