499204817 has 2 divisors, whose sum is σ = 499204818. Its totient is φ = 499204816.

The previous prime is 499204789. The next prime is 499204829. The reversal of 499204817 is 718402994.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305410576 + 193794241 = 17476^2 + 13921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-499204817 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (499204877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249602408 + 249602409.

It is an arithmetic number, because the mean of its divisors is an integer number (249602409).

Almost surely, 2^499204817 is an apocalyptic number.

It is an amenable number.

499204817 is a deficient number, since it is larger than the sum of its proper divisors (1).

499204817 is an equidigital number, since it uses as much as digits as its factorization.

499204817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 499204817 is about 22342.8918674374. The cubic root of 499204817 is about 793.2795446234.

The spelling of 499204817 in words is "four hundred ninety-nine million, two hundred four thousand, eight hundred seventeen".