1789423 has 4 divisors (see below), whose sum is σ = 1867248. Its totient is φ = 1711600.

The previous prime is 1789399. The next prime is 1789427. The reversal of 1789423 is 3249871.

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 1789423 - 2⁵ = 1789391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1789427) 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, 38878 + ... + 38923.

It is an arithmetic number, because the mean of its divisors is an integer number (466812).

2^1789423 is an apocalyptic number.

1789423 is a deficient number, since it is larger than the sum of its proper divisors (77825).

1789423 is an equidigital number, since it uses as much as digits as its factorization.

1789423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77824.

The product of its digits is 12096, while the sum is 34.

The square root of 1789423 is about 1337.6931636216. The cubic root of 1789423 is about 121.4053070606.

The spelling of 1789423 in words is "one million, seven hundred eighty-nine thousand, four hundred twenty-three".