493988709 has 8 divisors (see below), whose sum is σ = 663459840. Its totient is φ = 326921696.

The previous prime is 493988683. The next prime is 493988713. The reversal of 493988709 is 907889394.

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 493988709 - 2⁹ = 493988197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (493988749) 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 7 ways as a sum of consecutive naturals, for example, 600549 + ... + 601370.

It is an arithmetic number, because the mean of its divisors is an integer number (82932480).

Almost surely, 2^493988709 is an apocalyptic number.

It is an amenable number.

493988709 is a deficient number, since it is larger than the sum of its proper divisors (169471131).

493988709 is a wasteful number, since it uses less digits than its factorization.

493988709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202059.

The product of its (nonzero) digits is 3919104, while the sum is 57.

The square root of 493988709 is about 22225.8567663881. The cubic root of 493988709 is about 790.5069165540.

The spelling of 493988709 in words is "four hundred ninety-three million, nine hundred eighty-eight thousand, seven hundred nine".