493566863 has 4 divisors (see below), whose sum is σ = 510586440. Its totient is φ = 476547288.

The previous prime is 493566847. The next prime is 493566889. The reversal of 493566863 is 368665394.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 493566863 - 2⁴ = 493566847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493566803) 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 3 ways as a sum of consecutive naturals, for example, 8509745 + ... + 8509802.

It is an arithmetic number, because the mean of its divisors is an integer number (127646610).

Almost surely, 2^493566863 is an apocalyptic number.

493566863 is a deficient number, since it is larger than the sum of its proper divisors (17019577).

493566863 is a wasteful number, since it uses less digits than its factorization.

493566863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17019576.

The product of its digits is 2799360, while the sum is 50.

The square root of 493566863 is about 22216.3647566383. The cubic root of 493566863 is about 790.2818323611.

The spelling of 493566863 in words is "four hundred ninety-three million, five hundred sixty-six thousand, eight hundred sixty-three".