497885009 has 2 divisors, whose sum is σ = 497885010. Its totient is φ = 497885008.

The previous prime is 497884997. The next prime is 497885041. The reversal of 497885009 is 900588794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463110400 + 34774609 = 21520^2 + 5897^2 .

It is a cyclic number.

It is not a de Polignac number, because 497885009 - 2⁸ = 497884753 is a prime.

It is not a weakly prime, because it can be changed into another prime (497885909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248942504 + 248942505.

It is an arithmetic number, because the mean of its divisors is an integer number (248942505).

Almost surely, 2^497885009 is an apocalyptic number.

It is an amenable number.

497885009 is a deficient number, since it is larger than the sum of its proper divisors (1).

497885009 is an equidigital number, since it uses as much as digits as its factorization.

497885009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 497885009 is about 22313.3370207148. The cubic root of 497885009 is about 792.5798313434.

The spelling of 497885009 in words is "four hundred ninety-seven million, eight hundred eighty-five thousand, nine".