1789223 has 2 divisors, whose sum is σ = 1789224. Its totient is φ = 1789222.

The previous prime is 1789219. The next prime is 1789247. The reversal of 1789223 is 3229871.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1789223 - 2² = 1789219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1789223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1786223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 894611 + 894612.

It is an arithmetic number, because the mean of its divisors is an integer number (894612).

2^1789223 is an apocalyptic number.

1789223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1789223 is an equidigital number, since it uses as much as digits as its factorization.

1789223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 1789223 is about 1337.6184059738. The cubic root of 1789223 is about 121.4007838212.

The spelling of 1789223 in words is "one million, seven hundred eighty-nine thousand, two hundred twenty-three".