503345 has 4 divisors (see below), whose sum is σ = 604020. Its totient is φ = 402672.

The previous prime is 503339. The next prime is 503351. The reversal of 503345 is 543305.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (503339) and next prime (503351).

It can be written as a sum of positive squares in 2 ways, for example, as 350464 + 152881 = 592^2 + 391^2 .

It is a cyclic number.

It is not a de Polignac number, because 503345 - 2¹⁰ = 502321 is a prime.

It is an unprimeable number.

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, 50330 + ... + 50339.

It is an arithmetic number, because the mean of its divisors is an integer number (151005).

2⁵⁰³³⁴⁵ is an apocalyptic number.

It is an amenable number.

503345 is a deficient number, since it is larger than the sum of its proper divisors (100675).

503345 is a wasteful number, since it uses less digits than its factorization.

503345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100674.

The product of its (nonzero) digits is 900, while the sum is 20.

The square root of 503345 is about 709.4681106294. The cubic root of 503345 is about 79.5466545768.

It can be divided in two parts, 503 and 345, that added together give a palindrome (848).

The spelling of 503345 in words is "five hundred three thousand, three hundred forty-five".