491466583 has 8 divisors (see below), whose sum is σ = 520728048. Its totient is φ = 462244224.

The previous prime is 491466571. The next prime is 491466589. The reversal of 491466583 is 385664194.

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

It is a cyclic number.

It is not a de Polignac number, because 491466583 - 2⁵ = 491466551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491466589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18460 + ... + 36382.

It is an arithmetic number, because the mean of its divisors is an integer number (65091006).

Almost surely, 2^491466583 is an apocalyptic number.

491466583 is a deficient number, since it is larger than the sum of its proper divisors (29261465).

491466583 is a wasteful number, since it uses less digits than its factorization.

491466583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19553.

The product of its digits is 622080, while the sum is 46.

The square root of 491466583 is about 22169.0456041752. The cubic root of 491466583 is about 789.1592738502.

The spelling of 491466583 in words is "four hundred ninety-one million, four hundred sixty-six thousand, five hundred eighty-three".