503423 has 2 divisors, whose sum is σ = 503424. Its totient is φ = 503422.

The previous prime is 503413. The next prime is 503431. The reversal of 503423 is 324305.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 503423 - 2⁴ = 503407 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251711 + 251712.

It is an arithmetic number, because the mean of its divisors is an integer number (251712).

2⁵⁰³⁴²³ is an apocalyptic number.

503423 is a deficient number, since it is larger than the sum of its proper divisors (1).

503423 is an equidigital number, since it uses as much as digits as its factorization.

503423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 503423 is about 709.5230792582. The cubic root of 503423 is about 79.5507633018.

Adding to 503423 its reverse (324305), we get a palindrome (827728).

The spelling of 503423 in words is "five hundred three thousand, four hundred twenty-three".