890223 has 4 divisors (see below), whose sum is σ = 1186968. Its totient is φ = 593480.

The previous prime is 890221. The next prime is 890231. The reversal of 890223 is 322098.

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 890223 - 2¹ = 890221 is a prime.

It is an Ulam number.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 890193 and 890202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148368 + ... + 148373.

It is an arithmetic number, because the mean of its divisors is an integer number (296742).

2⁸⁹⁰²²³ is an apocalyptic number.

890223 is a deficient number, since it is larger than the sum of its proper divisors (296745).

890223 is a wasteful number, since it uses less digits than its factorization.

890223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296744.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 890223 is about 943.5162955667. The cubic root of 890223 is about 96.1980503377.

The spelling of 890223 in words is "eight hundred ninety thousand, two hundred twenty-three".