503389 has 2 divisors, whose sum is σ = 503390. Its totient is φ = 503388.

The previous prime is 503383. The next prime is 503407. The reversal of 503389 is 983305.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308025 + 195364 = 555^2 + 442^2 .

It is a cyclic number.

It is not a de Polignac number, because 503389 - 2³ = 503381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503381) 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 as a sum of consecutive naturals, namely, 251694 + 251695.

It is an arithmetic number, because the mean of its divisors is an integer number (251695).

2⁵⁰³³⁸⁹ is an apocalyptic number.

It is an amenable number.

503389 is a deficient number, since it is larger than the sum of its proper divisors (1).

503389 is an equidigital number, since it uses as much as digits as its factorization.

503389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 503389 is about 709.4991190974. The cubic root of 503389 is about 79.5489723713.

The spelling of 503389 in words is "five hundred three thousand, three hundred eighty-nine".