503820349 has 2 divisors, whose sum is σ = 503820350. Its totient is φ = 503820348.

The previous prime is 503820329. The next prime is 503820353. The reversal of 503820349 is 943028305.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375972100 + 127848249 = 19390^2 + 11307^2 .

It is a cyclic number.

It is not a de Polignac number, because 503820349 - 2²⁷ = 369602621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (503820329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251910174 + 251910175.

It is an arithmetic number, because the mean of its divisors is an integer number (251910175).

Almost surely, 2^503820349 is an apocalyptic number.

It is an amenable number.

503820349 is a deficient number, since it is larger than the sum of its proper divisors (1).

503820349 is an equidigital number, since it uses as much as digits as its factorization.

503820349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 503820349 is about 22445.9428182467. The cubic root of 503820349 is about 795.7168745742.

The spelling of 503820349 in words is "five hundred three million, eight hundred twenty thousand, three hundred forty-nine".