2194723 has 2 divisors, whose sum is σ = 2194724. Its totient is φ = 2194722.

The previous prime is 2194721. The next prime is 2194739. The reversal of 2194723 is 3274912.

2194723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2194723 - 2¹ = 2194721 is a prime.

Together with 2194721, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2194691 and 2194700.

It is not a weakly prime, because it can be changed into another prime (2194721) 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 as a sum of consecutive naturals, namely, 1097361 + 1097362.

It is an arithmetic number, because the mean of its divisors is an integer number (1097362).

2^2194723 is an apocalyptic number.

2194723 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194723 is an equidigital number, since it uses as much as digits as its factorization.

2194723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 2194723 is about 1481.4597530814. The cubic root of 2194723 is about 129.9550732329.

The spelling of 2194723 in words is "two million, one hundred ninety-four thousand, seven hundred twenty-three".