503390399 has 2 divisors, whose sum is σ = 503390400. Its totient is φ = 503390398.

The previous prime is 503390387. The next prime is 503390411. The reversal of 503390399 is 993093305.

It is a balanced prime because it is at equal distance from previous prime (503390387) and next prime (503390411).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-503390399 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503390309) 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, 251695199 + 251695200.

It is an arithmetic number, because the mean of its divisors is an integer number (251695200).

Almost surely, 2^503390399 is an apocalyptic number.

503390399 is a deficient number, since it is larger than the sum of its proper divisors (1).

503390399 is an equidigital number, since it uses as much as digits as its factorization.

503390399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 98415, while the sum is 41.

The square root of 503390399 is about 22436.3633193974. The cubic root of 503390399 is about 795.4904606444.

The spelling of 503390399 in words is "five hundred three million, three hundred ninety thousand, three hundred ninety-nine".