503688349 has 2 divisors, whose sum is σ = 503688350. Its totient is φ = 503688348.

The previous prime is 503688337. The next prime is 503688371. The reversal of 503688349 is 943886305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503688249 + 100 = 22443^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 503688349 - 2⁹ = 503687837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 503688299 and 503688308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503688329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251844174 + 251844175.

It is an arithmetic number, because the mean of its divisors is an integer number (251844175).

Almost surely, 2^503688349 is an apocalyptic number.

It is an amenable number.

503688349 is a deficient number, since it is larger than the sum of its proper divisors (1).

503688349 is an equidigital number, since it uses as much as digits as its factorization.

503688349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 46.

The square root of 503688349 is about 22443.0022278660. The cubic root of 503688349 is about 795.6473763877.

The spelling of 503688349 in words is "five hundred three million, six hundred eighty-eight thousand, three hundred forty-nine".