503343 has 6 divisors (see below), whose sum is σ = 727064. Its totient is φ = 335556.

The previous prime is 503339. The next prime is 503351. The reversal of 503343 is 343305.

It is a happy number.

It is not a de Polignac number, because 503343 - 2² = 503339 is a prime.

It is a Duffinian number.

It is a congruent 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 (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27955 + ... + 27972.

2⁵⁰³³⁴³ is an apocalyptic number.

503343 is a deficient number, since it is larger than the sum of its proper divisors (223721).

503343 is a wasteful number, since it uses less digits than its factorization.

503343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55933 (or 55930 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 18.

The square root of 503343 is about 709.4667011213. The cubic root of 503343 is about 79.5465492193.

Adding to 503343 its reverse (343305), we get a palindrome (846648).

The spelling of 503343 in words is "five hundred three thousand, three hundred forty-three".