823023 has 12 divisors (see below), whose sum is σ = 1251640. Its totient is φ = 519696.

The previous prime is 823013. The next prime is 823033. The reversal of 823023 is 320328.

It is an interprime number because it is at equal distance from previous prime (823013) and next prime (823033).

It is not a de Polignac number, because 823023 - 2¹⁰ = 821999 is a prime.

It is a Duffinian number.

823023 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 822987 and 823005.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 823023.

It is not an unprimeable number, because it can be changed into a prime (823003) 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 11 ways as a sum of consecutive naturals, for example, 2236 + ... + 2577.

2⁸²³⁰²³ is an apocalyptic number.

823023 is a deficient number, since it is larger than the sum of its proper divisors (428617).

823023 is a wasteful number, since it uses less digits than its factorization.

823023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4838 (or 4835 counting only the distinct ones).

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

The square root of 823023 is about 907.2061507728. The cubic root of 823023 is about 93.7138954307.

The spelling of 823023 in words is "eight hundred twenty-three thousand, twenty-three".