493006663 has 4 divisors (see below), whose sum is σ = 493092040. Its totient is φ = 492921288.

The previous prime is 493006649. The next prime is 493006667. The reversal of 493006663 is 366600394.

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 493006663 - 2²¹ = 490909511 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 (493006667) 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 in 3 ways as a sum of consecutive naturals, for example, 33345 + ... + 45802.

It is an arithmetic number, because the mean of its divisors is an integer number (123273010).

Almost surely, 2^493006663 is an apocalyptic number.

493006663 is a deficient number, since it is larger than the sum of its proper divisors (85377).

493006663 is an equidigital number, since it uses as much as digits as its factorization.

493006663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85376.

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 493006663 is about 22203.7533538814. The cubic root of 493006663 is about 789.9827283518.

The spelling of 493006663 in words is "four hundred ninety-three million, six thousand, six hundred sixty-three".