2184823 has 4 divisors (see below), whose sum is σ = 2313360. Its totient is φ = 2056288.

The previous prime is 2184811. The next prime is 2184827. The reversal of 2184823 is 3284812.

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 2184823 - 2¹³ = 2176631 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2184791 and 2184800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2184827) 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, 64243 + ... + 64276.

It is an arithmetic number, because the mean of its divisors is an integer number (578340).

2^2184823 is an apocalyptic number.

2184823 is a deficient number, since it is larger than the sum of its proper divisors (128537).

2184823 is a wasteful number, since it uses less digits than its factorization.

2184823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128536.

The product of its digits is 3072, while the sum is 28.

The square root of 2184823 is about 1478.1146775538. The cubic root of 2184823 is about 129.7593773812.

It can be divided in two parts, 218 and 4823, that added together give a square (5041 = 71²).

The spelling of 2184823 in words is "two million, one hundred eighty-four thousand, eight hundred twenty-three".