2823215 has 4 divisors (see below), whose sum is σ = 3387864. Its totient is φ = 2258568.

The previous prime is 2823203. The next prime is 2823217. The reversal of 2823215 is 5123282.

2823215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2823215 - 2⁸ = 2822959 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 (2823217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282317 + ... + 282326.

It is an arithmetic number, because the mean of its divisors is an integer number (846966).

2^2823215 is an apocalyptic number.

2823215 is a deficient number, since it is larger than the sum of its proper divisors (564649).

2823215 is an equidigital number, since it uses as much as digits as its factorization.

2823215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564648.

The product of its digits is 960, while the sum is 23.

The square root of 2823215 is about 1680.2425420159. The cubic root of 2823215 is about 141.3344340773.

Adding to 2823215 its reverse (5123282), we get a palindrome (7946497).

The spelling of 2823215 in words is "two million, eight hundred twenty-three thousand, two hundred fifteen".