1790223 has 4 divisors (see below), whose sum is σ = 2386968. Its totient is φ = 1193480.

The previous prime is 1790221. The next prime is 1790231. The reversal of 1790223 is 3220971.

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 1790223 - 2¹ = 1790221 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 1790193 and 1790202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1790221) 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 in 3 ways as a sum of consecutive naturals, for example, 298368 + ... + 298373.

It is an arithmetic number, because the mean of its divisors is an integer number (596742).

2^1790223 is an apocalyptic number.

1790223 is a deficient number, since it is larger than the sum of its proper divisors (596745).

1790223 is an equidigital number, since it uses as much as digits as its factorization.

1790223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 596744.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1790223 is about 1337.9921524434. The cubic root of 1790223 is about 121.4233966488.

The spelling of 1790223 in words is "one million, seven hundred ninety thousand, two hundred twenty-three".