493598689 has 8 divisors (see below), whose sum is σ = 523550088. Its totient is φ = 463749120.

The previous prime is 493598671. The next prime is 493598731. The reversal of 493598689 is 986895394.

It can be written as a sum of positive squares in 4 ways, for example, as 347188689 + 146410000 = 18633^2 + 12100^2 .

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

It is not a de Polignac number, because 493598689 - 2¹¹ = 493596641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (493598629) 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 7 ways as a sum of consecutive naturals, for example, 15352 + ... + 34969.

It is an arithmetic number, because the mean of its divisors is an integer number (65443761).

Almost surely, 2^493598689 is an apocalyptic number.

It is an amenable number.

493598689 is a deficient number, since it is larger than the sum of its proper divisors (29951399).

493598689 is a wasteful number, since it uses less digits than its factorization.

493598689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50915.

The product of its digits is 16796160, while the sum is 61.

The square root of 493598689 is about 22217.0810188917. The cubic root of 493598689 is about 790.2988182185.

The spelling of 493598689 in words is "four hundred ninety-three million, five hundred ninety-eight thousand, six hundred eighty-nine".