502823 has 4 divisors (see below), whose sum is σ = 511128. Its totient is φ = 494520.

The previous prime is 502819. The next prime is 502829. The reversal of 502823 is 328205.

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 502823 - 2² = 502819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 502795 and 502804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (502829) 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, 4061 + ... + 4182.

It is an arithmetic number, because the mean of its divisors is an integer number (127782).

2⁵⁰²⁸²³ is an apocalyptic number.

502823 is a deficient number, since it is larger than the sum of its proper divisors (8305).

502823 is an equidigital number, since it uses as much as digits as its factorization.

502823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8304.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 502823 is about 709.1001339726. The cubic root of 502823 is about 79.5191467932.

The spelling of 502823 in words is "five hundred two thousand, eight hundred twenty-three".