504379009 has 2 divisors, whose sum is σ = 504379010. Its totient is φ = 504379008.

The previous prime is 504378989. The next prime is 504379027. The reversal of 504379009 is 900973405.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 386004609 + 118374400 = 19647^2 + 10880^2 .

It is a cyclic number.

It is not a de Polignac number, because 504379009 - 2¹³ = 504370817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (504379039) 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, 252189504 + 252189505.

It is an arithmetic number, because the mean of its divisors is an integer number (252189505).

Almost surely, 2^504379009 is an apocalyptic number.

It is an amenable number.

504379009 is a deficient number, since it is larger than the sum of its proper divisors (1).

504379009 is an equidigital number, since it uses as much as digits as its factorization.

504379009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 504379009 is about 22458.3839356264. The cubic root of 504379009 is about 796.0108755237.

The spelling of 504379009 in words is "five hundred four million, three hundred seventy-nine thousand, nine".