497810009 has 2 divisors, whose sum is σ = 497810010. Its totient is φ = 497810008.

The previous prime is 497809981. The next prime is 497810077. The reversal of 497810009 is 900018794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491065600 + 6744409 = 22160^2 + 2597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497810009 is a prime.

It is not a weakly prime, because it can be changed into another prime (497812009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 248905004 + 248905005.

It is an arithmetic number, because the mean of its divisors is an integer number (248905005).

Almost surely, 2^497810009 is an apocalyptic number.

It is an amenable number.

497810009 is a deficient number, since it is larger than the sum of its proper divisors (1).

497810009 is an equidigital number, since it uses as much as digits as its factorization.

497810009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 38.

The square root of 497810009 is about 22311.6563481961. The cubic root of 497810009 is about 792.5400320114.

The spelling of 497810009 in words is "four hundred ninety-seven million, eight hundred ten thousand, nine".