497840617 has 2 divisors, whose sum is σ = 497840618. Its totient is φ = 497840616.

The previous prime is 497840537. The next prime is 497840639. The reversal of 497840617 is 716048794.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395850816 + 101989801 = 19896^2 + 10099^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-497840617 is a prime.

It is not a weakly prime, because it can be changed into another prime (497840647) 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, 248920308 + 248920309.

It is an arithmetic number, because the mean of its divisors is an integer number (248920309).

Almost surely, 2^497840617 is an apocalyptic number.

It is an amenable number.

497840617 is a deficient number, since it is larger than the sum of its proper divisors (1).

497840617 is an equidigital number, since it uses as much as digits as its factorization.

497840617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 497840617 is about 22312.3422571455. The cubic root of 497840617 is about 792.5562748669.

The spelling of 497840617 in words is "four hundred ninety-seven million, eight hundred forty thousand, six hundred seventeen".