2838565 has 12 divisors (see below), whose sum is σ = 3493836. Its totient is φ = 2213888.

The previous prime is 2838557. The next prime is 2838569. The reversal of 2838565 is 5658382.

It can be written as a sum of positive squares in 2 ways, for example, as 2122849 + 715716 = 1457^2 + 846^2 .

It is not a de Polignac number, because 2838565 - 2³ = 2838557 is a prime.

It is a Duffinian number.

2838565 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2838569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10917 + ... + 11173.

It is an arithmetic number, because the mean of its divisors is an integer number (291153).

2^2838565 is an apocalyptic number.

It is an amenable number.

2838565 is a deficient number, since it is larger than the sum of its proper divisors (655271).

2838565 is an equidigital number, since it uses as much as digits as its factorization.

2838565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 309 counting only the distinct ones).

The product of its digits is 57600, while the sum is 37.

The square root of 2838565 is about 1684.8041429199. The cubic root of 2838565 is about 141.5901193538.

It can be divided in two parts, 2838 and 565, that added together give a triangular number (3403 = T₈₂).

The spelling of 2838565 in words is "two million, eight hundred thirty-eight thousand, five hundred sixty-five".