493768537 has 2 divisors, whose sum is σ = 493768538. Its totient is φ = 493768536.

The previous prime is 493768489. The next prime is 493768603. The reversal of 493768537 is 735867394.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491908041 + 1860496 = 22179^2 + 1364^2 .

It is a cyclic number.

It is not a de Polignac number, because 493768537 - 2¹⁹ = 493244249 is a prime.

It is a super-2 number, since 2×493768537² = 487614736262240738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (493768237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 246884268 + 246884269.

It is an arithmetic number, because the mean of its divisors is an integer number (246884269).

Almost surely, 2^493768537 is an apocalyptic number.

It is an amenable number.

493768537 is a deficient number, since it is larger than the sum of its proper divisors (1).

493768537 is an equidigital number, since it uses as much as digits as its factorization.

493768537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3810240, while the sum is 52.

The square root of 493768537 is about 22220.9031544625. The cubic root of 493768537 is about 790.3894554665.

The spelling of 493768537 in words is "four hundred ninety-three million, seven hundred sixty-eight thousand, five hundred thirty-seven".