1798223 has 4 divisors (see below), whose sum is σ = 2055120. Its totient is φ = 1541328.

The previous prime is 1798211. The next prime is 1798241. The reversal of 1798223 is 3228971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3228971 = 281 ⋅11491.

It is a cyclic number.

It is not a de Polignac number, because 1798223 - 2⁴ = 1798207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1798223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798253) 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, 128438 + ... + 128451.

It is an arithmetic number, because the mean of its divisors is an integer number (513780).

2^1798223 is an apocalyptic number.

1798223 is a deficient number, since it is larger than the sum of its proper divisors (256897).

1798223 is an equidigital number, since it uses as much as digits as its factorization.

1798223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256896.

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

The square root of 1798223 is about 1340.9783741731. The cubic root of 1798223 is about 121.6039968316.

The spelling of 1798223 in words is "one million, seven hundred ninety-eight thousand, two hundred twenty-three".