493185863 has 2 divisors, whose sum is σ = 493185864. Its totient is φ = 493185862.

The previous prime is 493185859. The next prime is 493185881. The reversal of 493185863 is 368581394.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 493185863 - 2² = 493185859 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 (493181863) 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, 246592931 + 246592932.

It is an arithmetic number, because the mean of its divisors is an integer number (246592932).

Almost surely, 2^493185863 is an apocalyptic number.

493185863 is a deficient number, since it is larger than the sum of its proper divisors (1).

493185863 is an equidigital number, since it uses as much as digits as its factorization.

493185863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 493185863 is about 22207.7883410303. The cubic root of 493185863 is about 790.0784320997.

The spelling of 493185863 in words is "four hundred ninety-three million, one hundred eighty-five thousand, eight hundred sixty-three".