494547517 has 2 divisors, whose sum is σ = 494547518. Its totient is φ = 494547516.

The previous prime is 494547511. The next prime is 494547553. The reversal of 494547517 is 715745494.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 384591321 + 109956196 = 19611^2 + 10486^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-494547517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (494547511) 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, 247273758 + 247273759.

It is an arithmetic number, because the mean of its divisors is an integer number (247273759).

Almost surely, 2^494547517 is an apocalyptic number.

It is an amenable number.

494547517 is a deficient number, since it is larger than the sum of its proper divisors (1).

494547517 is an equidigital number, since it uses as much as digits as its factorization.

494547517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 705600, while the sum is 46.

The square root of 494547517 is about 22238.4243371692. The cubic root of 494547517 is about 790.8048822883.

The spelling of 494547517 in words is "four hundred ninety-four million, five hundred forty-seven thousand, five hundred seventeen".