493858243 has 16 divisors (see below), whose sum is σ = 513324000. Its totient is φ = 474808320.

The previous prime is 493858237. The next prime is 493858247. The reversal of 493858243 is 342858394.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-493858243 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 493858193 and 493858202.

It is not an unprimeable number, because it can be changed into a prime (493858247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1099683 + ... + 1100131.

It is an arithmetic number, because the mean of its divisors is an integer number (32082750).

Almost surely, 2^493858243 is an apocalyptic number.

493858243 is a deficient number, since it is larger than the sum of its proper divisors (19465757).

493858243 is a wasteful number, since it uses less digits than its factorization.

493858243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822.

The product of its digits is 829440, while the sum is 46.

The square root of 493858243 is about 22222.9215676067. The cubic root of 493858243 is about 790.4373175569.

The spelling of 493858243 in words is "four hundred ninety-three million, eight hundred fifty-eight thousand, two hundred forty-three".