494493659 has 4 divisors (see below), whose sum is σ = 539447640. Its totient is φ = 449539680.

The previous prime is 494493647. The next prime is 494493667. The reversal of 494493659 is 956394494.

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

It is a cyclic number.

It is not a de Polignac number, because 494493659 - 2²⁰ = 493445083 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 494493659.

It is not an unprimeable number, because it can be changed into a prime (494493619) 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, 22476974 + ... + 22476995.

It is an arithmetic number, because the mean of its divisors is an integer number (134861910).

Almost surely, 2^494493659 is an apocalyptic number.

494493659 is a deficient number, since it is larger than the sum of its proper divisors (44953981).

494493659 is a wasteful number, since it uses less digits than its factorization.

494493659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44953980.

The product of its digits is 4199040, while the sum is 53.

The square root of 494493659 is about 22237.2133820765. The cubic root of 494493659 is about 790.7761740826.

The spelling of 494493659 in words is "four hundred ninety-four million, four hundred ninety-three thousand, six hundred fifty-nine".