494861563 has 8 divisors (see below), whose sum is σ = 565710560. Its totient is φ = 424051200.

The previous prime is 494861561. The next prime is 494861573. The reversal of 494861563 is 365168494.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 494861563 - 2¹ = 494861561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (494861561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27163 + ... + 41563.

It is an arithmetic number, because the mean of its divisors is an integer number (70713820).

Almost surely, 2^494861563 is an apocalyptic number.

494861563 is a deficient number, since it is larger than the sum of its proper divisors (70848997).

494861563 is a wasteful number, since it uses less digits than its factorization.

494861563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19317.

The product of its digits is 622080, while the sum is 46.

The square root of 494861563 is about 22245.4841035209. The cubic root of 494861563 is about 790.9722383404.

The spelling of 494861563 in words is "four hundred ninety-four million, eight hundred sixty-one thousand, five hundred sixty-three".