493973317 has 2 divisors, whose sum is σ = 493973318. Its totient is φ = 493973316.

The previous prime is 493973309. The next prime is 493973351. The reversal of 493973317 is 713379394.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 485364961 + 8608356 = 22031^2 + 2934^2 .

It is a cyclic number.

It is not a de Polignac number, because 493973317 - 2³ = 493973309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (493973377) 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, 246986658 + 246986659.

It is an arithmetic number, because the mean of its divisors is an integer number (246986659).

Almost surely, 2^493973317 is an apocalyptic number.

It is an amenable number.

493973317 is a deficient number, since it is larger than the sum of its proper divisors (1).

493973317 is an equidigital number, since it uses as much as digits as its factorization.

493973317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 428652, while the sum is 46.

The square root of 493973317 is about 22225.5105003237. The cubic root of 493973317 is about 790.4987061040.

The spelling of 493973317 in words is "four hundred ninety-three million, nine hundred seventy-three thousand, three hundred seventeen".