2084565 has 16 divisors (see below), whose sum is σ = 3811968. Its totient is φ = 952896.

The previous prime is 2084561. The next prime is 2084567. The reversal of 2084565 is 5654802.

It is not a de Polignac number, because 2084565 - 2² = 2084561 is a prime.

It is a super-2 number, since 2×2084565² = 8690822478450, which contains 22 as substring.

2084565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2084561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9822 + ... + 10031.

It is an arithmetic number, because the mean of its divisors is an integer number (238248).

2^2084565 is an apocalyptic number.

It is an amenable number.

2084565 is a deficient number, since it is larger than the sum of its proper divisors (1727403).

2084565 is a wasteful number, since it uses less digits than its factorization.

2084565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19868.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2084565 is about 1443.8022717810. The cubic root of 2084565 is about 127.7434027815.

It can be divided in two parts, 20845 and 65, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 2084565 in words is "two million, eighty-four thousand, five hundred sixty-five".