503923 has 8 divisors (see below), whose sum is σ = 580448. Its totient is φ = 428544.

The previous prime is 503911. The next prime is 503927. The reversal of 503923 is 329305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503923 is a prime.

It is a Duffinian number.

503923 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 503894 and 503903.

It is not an unprimeable number, because it can be changed into a prime (503927) 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 7 ways as a sum of consecutive naturals, for example, 1165 + ... + 1537.

It is an arithmetic number, because the mean of its divisors is an integer number (72556).

2⁵⁰³⁹²³ is an apocalyptic number.

503923 is a deficient number, since it is larger than the sum of its proper divisors (76525).

503923 is a wasteful number, since it uses less digits than its factorization.

503923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 503923 is about 709.8753411691. The cubic root of 503923 is about 79.5770912081.

The spelling of 503923 in words is "five hundred three thousand, nine hundred twenty-three".