493768591 has 6 divisors (see below), whose sum is σ = 494981160. Its totient is φ = 492558408.

The previous prime is 493768537. The next prime is 493768603. The reversal of 493768591 is 195867394.

It is a happy number.

It is not a de Polignac number, because 493768591 - 2¹⁷ = 493637519 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 (493768291) 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 5 ways as a sum of consecutive naturals, for example, 536830 + ... + 537748.

It is an arithmetic number, because the mean of its divisors is an integer number (82496860).

Almost surely, 2^493768591 is an apocalyptic number.

493768591 is a deficient number, since it is larger than the sum of its proper divisors (1212569).

493768591 is an frugal number, since it uses more digits than its factorization.

493768591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385 (or 1652 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 493768591 is about 22220.9043695346. The cubic root of 493768591 is about 790.3894842796.

The spelling of 493768591 in words is "four hundred ninety-three million, seven hundred sixty-eight thousand, five hundred ninety-one".