2831223 has 4 divisors (see below), whose sum is σ = 3774968. Its totient is φ = 1887480.

The previous prime is 2831221. The next prime is 2831237. The reversal of 2831223 is 3221382.

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

It is not a de Polignac number, because 2831223 - 2¹ = 2831221 is a prime.

It is a D-number.

It is a Duffinian number.

2831223 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2831223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2831221) 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, 471868 + ... + 471873.

It is an arithmetic number, because the mean of its divisors is an integer number (943742).

2^2831223 is an apocalyptic number.

2831223 is a deficient number, since it is larger than the sum of its proper divisors (943745).

2831223 is an equidigital number, since it uses as much as digits as its factorization.

2831223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943744.

The product of its digits is 576, while the sum is 21.

The square root of 2831223 is about 1682.6238438819. The cubic root of 2831223 is about 141.4679388128.

The spelling of 2831223 in words is "two million, eight hundred thirty-one thousand, two hundred twenty-three".