823203 has 10 divisors (see below), whose sum is σ = 1229844. Its totient is φ = 548748.

The previous prime is 823201. The next prime is 823219. The reversal of 823203 is 302328.

It is not a de Polignac number, because 823203 - 2¹ = 823201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (823201) 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 9 ways as a sum of consecutive naturals, for example, 5001 + ... + 5162.

2⁸²³²⁰³ is an apocalyptic number.

823203 is a deficient number, since it is larger than the sum of its proper divisors (406641).

823203 is a wasteful number, since it uses less digits than its factorization.

823203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10175 (or 10166 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 823203 is about 907.3053510258. The cubic root of 823203 is about 93.7207268605.

The spelling of 823203 in words is "eight hundred twenty-three thousand, two hundred three".