493321688 has 16 divisors (see below), whose sum is σ = 927045000. Its totient is φ = 246109696.

The previous prime is 493321679. The next prime is 493321711. The reversal of 493321688 is 886123394.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 65078 + ... + 72261.

Almost surely, 2^493321688 is an apocalyptic number.

It is an amenable number.

493321688 is a deficient number, since it is larger than the sum of its proper divisors (433723312).

493321688 is a wasteful number, since it uses less digits than its factorization.

493321688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137794 (or 137790 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 493321688 is about 22210.8461792882. The cubic root of 493321688 is about 790.1509555039.

The spelling of 493321688 in words is "four hundred ninety-three million, three hundred twenty-one thousand, six hundred eighty-eight".