503393 has 4 divisors (see below), whose sum is σ = 549168. Its totient is φ = 457620.

The previous prime is 503389. The next prime is 503407. The reversal of 503393 is 393305.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 503393 - 2² = 503389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503303) 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, 22871 + ... + 22892.

It is an arithmetic number, because the mean of its divisors is an integer number (137292).

2⁵⁰³³⁹³ is an apocalyptic number.

It is an amenable number.

503393 is a deficient number, since it is larger than the sum of its proper divisors (45775).

503393 is a wasteful number, since it uses less digits than its factorization.

503393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45774.

The product of its (nonzero) digits is 1215, while the sum is 23.

The square root of 503393 is about 709.5019379818. The cubic root of 503393 is about 79.5491830732.

Adding to 503393 its reverse (393305), we get a palindrome (896698).

It can be divided in two parts, 50 and 3393, that added together give a palindrome (3443).

The spelling of 503393 in words is "five hundred three thousand, three hundred ninety-three".