503317 has 2 divisors, whose sum is σ = 503318. Its totient is φ = 503316.

The previous prime is 503303. The next prime is 503339. The reversal of 503317 is 713305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264196 + 239121 = 514^2 + 489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503317 is a prime.

503317 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 503294 and 503303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503017) 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 as a sum of consecutive naturals, namely, 251658 + 251659.

It is an arithmetic number, because the mean of its divisors is an integer number (251659).

2⁵⁰³³¹⁷ is an apocalyptic number.

It is an amenable number.

503317 is a deficient number, since it is larger than the sum of its proper divisors (1).

503317 is an equidigital number, since it uses as much as digits as its factorization.

503317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 503317 is about 709.4483772622. The cubic root of 503317 is about 79.5451795464.

It can be divided in two parts, 5033 and 17, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 503317 in words is "five hundred three thousand, three hundred seventeen".