503963 has 2 divisors, whose sum is σ = 503964. Its totient is φ = 503962.

The previous prime is 503959. The next prime is 503969. The reversal of 503963 is 369305.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 503963 - 2² = 503959 is a prime.

It is not a weakly prime, because it can be changed into another prime (503969) 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, 251981 + 251982.

It is an arithmetic number, because the mean of its divisors is an integer number (251982).

2⁵⁰³⁹⁶³ is an apocalyptic number.

503963 is a deficient number, since it is larger than the sum of its proper divisors (1).

503963 is an equidigital number, since it uses as much as digits as its factorization.

503963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 503963 is about 709.9035145708. The cubic root of 503963 is about 79.5791966881.

The spelling of 503963 in words is "five hundred three thousand, nine hundred sixty-three".