2247823 has 4 divisors (see below), whose sum is σ = 2251768. Its totient is φ = 2243880.

The previous prime is 2247811. The next prime is 2247851. The reversal of 2247823 is 3287422.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2247823 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2247791 and 2247800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247803) 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, 936 + ... + 2317.

It is an arithmetic number, because the mean of its divisors is an integer number (562942).

2^2247823 is an apocalyptic number.

2247823 is a deficient number, since it is larger than the sum of its proper divisors (3945).

2247823 is an equidigital number, since it uses as much as digits as its factorization.

2247823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3944.

The product of its digits is 5376, while the sum is 28.

The square root of 2247823 is about 1499.2741577177. The cubic root of 2247823 is about 130.9947941913.

It can be divided in two parts, 224782 and 3, that added together give a triangular number (224785 = T₆₇₀).

The spelling of 2247823 in words is "two million, two hundred forty-seven thousand, eight hundred twenty-three".