493343489 has 4 divisors (see below), whose sum is σ = 498228180. Its totient is φ = 488458800.

The previous prime is 493343453. The next prime is 493343503. The reversal of 493343489 is 984343394.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 470542864 + 22800625 = 21692^2 + 4775^2 .

It is a cyclic number.

It is not a de Polignac number, because 493343489 - 2⁸ = 493343233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (493343419) 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, 2442194 + ... + 2442395.

It is an arithmetic number, because the mean of its divisors is an integer number (124557045).

Almost surely, 2^493343489 is an apocalyptic number.

It is an amenable number.

493343489 is a deficient number, since it is larger than the sum of its proper divisors (4884691).

493343489 is a wasteful number, since it uses less digits than its factorization.

493343489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884690.

The product of its digits is 1119744, while the sum is 47.

The square root of 493343489 is about 22211.3369476040. The cubic root of 493343489 is about 790.1625948512.

The spelling of 493343489 in words is "four hundred ninety-three million, three hundred forty-three thousand, four hundred eighty-nine".