2184965 has 4 divisors (see below), whose sum is σ = 2621964. Its totient is φ = 1747968.

The previous prime is 2184929. The next prime is 2184967. The reversal of 2184965 is 5694812.

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 351649 + 1833316 = 593^2 + 1354^2 .

It is a cyclic number.

It is not a de Polignac number, because 2184965 - 2⁸ = 2184709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2184967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218492 + ... + 218501.

It is an arithmetic number, because the mean of its divisors is an integer number (655491).

2^2184965 is an apocalyptic number.

It is an amenable number.

2184965 is a deficient number, since it is larger than the sum of its proper divisors (436999).

2184965 is an equidigital number, since it uses as much as digits as its factorization.

2184965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436998.

The product of its digits is 17280, while the sum is 35.

The square root of 2184965 is about 1478.1627109354. The cubic root of 2184965 is about 129.7621885063.

The spelling of 2184965 in words is "two million, one hundred eighty-four thousand, nine hundred sixty-five".