491647116 has 96 divisors (see below), whose sum is σ = 1239884800. Its totient is φ = 151165440.

The previous prime is 491647109. The next prime is 491647151. The reversal of 491647116 is 611746194.

It is a super-2 number, since 2×491647116² = 483433773342234912, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1814061 + ... + 1814331.

Almost surely, 2^491647116 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 491647116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619942400).

491647116 is an abundant number, since it is smaller than the sum of its proper divisors (748237684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491647116 is a wasteful number, since it uses less digits than its factorization.

491647116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 477 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 491647116 is about 22173.1169662725. The cubic root of 491647116 is about 789.2558906939.

It can be divided in two parts, 49164 and 7116, that added together give a triangular number (56280 = T₃₃₅).

The spelling of 491647116 in words is "four hundred ninety-one million, six hundred forty-seven thousand, one hundred sixteen".