493308563 has 4 divisors (see below), whose sum is σ = 538154808. Its totient is φ = 448462320.

The previous prime is 493308559. The next prime is 493308581. The reversal of 493308563 is 365803394.

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 493308563 - 2² = 493308559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 493308563.

It is not an unprimeable number, because it can be changed into a prime (493308503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22423106 + ... + 22423127.

It is an arithmetic number, because the mean of its divisors is an integer number (134538702).

Almost surely, 2^493308563 is an apocalyptic number.

493308563 is a deficient number, since it is larger than the sum of its proper divisors (44846245).

493308563 is a wasteful number, since it uses less digits than its factorization.

493308563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44846244.

The product of its (nonzero) digits is 233280, while the sum is 41.

The square root of 493308563 is about 22210.5507135685. The cubic root of 493308563 is about 790.1439480255.

The spelling of 493308563 in words is "four hundred ninety-three million, three hundred eight thousand, five hundred sixty-three".