498509317 has 2 divisors, whose sum is σ = 498509318. Its totient is φ = 498509316.

The previous prime is 498509293. The next prime is 498509339. The reversal of 498509317 is 713905894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 456505956 + 42003361 = 21366^2 + 6481^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-498509317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498509017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249254658 + 249254659.

It is an arithmetic number, because the mean of its divisors is an integer number (249254659).

Almost surely, 2^498509317 is an apocalyptic number.

It is an amenable number.

498509317 is a deficient number, since it is larger than the sum of its proper divisors (1).

498509317 is an equidigital number, since it uses as much as digits as its factorization.

498509317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 498509317 is about 22327.3222084512. The cubic root of 498509317 is about 792.9109702245.

The spelling of 498509317 in words is "four hundred ninety-eight million, five hundred nine thousand, three hundred seventeen".