491843608 has 16 divisors (see below), whose sum is σ = 927304560. Its totient is φ = 244562400.

The previous prime is 491843603. The next prime is 491843617. The reversal of 491843608 is 806348194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491843603) 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, 168388 + ... + 171283.

It is an arithmetic number, because the mean of its divisors is an integer number (57956535).

Almost surely, 2^491843608 is an apocalyptic number.

It is an amenable number.

491843608 is a deficient number, since it is larger than the sum of its proper divisors (435460952).

491843608 is a wasteful number, since it uses less digits than its factorization.

491843608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339858 (or 339854 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 491843608 is about 22177.5473846862. The cubic root of 491843608 is about 789.3610215272.

The spelling of 491843608 in words is "four hundred ninety-one million, eight hundred forty-three thousand, six hundred eight".