503939 has 2 divisors, whose sum is σ = 503940. Its totient is φ = 503938.

The previous prime is 503929. The next prime is 503947. The reversal of 503939 is 939305.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503939 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (503929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251969 + 251970.

It is an arithmetic number, because the mean of its divisors is an integer number (251970).

2⁵⁰³⁹³⁹ is an apocalyptic number.

503939 is a deficient number, since it is larger than the sum of its proper divisors (1).

503939 is an equidigital number, since it uses as much as digits as its factorization.

503939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3645, while the sum is 29.

The square root of 503939 is about 709.8866106640. The cubic root of 503939 is about 79.5779334134.

The spelling of 503939 in words is "five hundred three thousand, nine hundred thirty-nine".