491424473 has 8 divisors (see below), whose sum is σ = 495645696. Its totient is φ = 487220800.

The previous prime is 491424421. The next prime is 491424481. The reversal of 491424473 is 374424194.

It is a happy number.

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 491424473 - 2⁸ = 491424217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491424413) 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, 55265 + ... + 63537.

It is an arithmetic number, because the mean of its divisors is an integer number (61955712).

Almost surely, 2^491424473 is an apocalyptic number.

It is an amenable number.

491424473 is a deficient number, since it is larger than the sum of its proper divisors (4221223).

491424473 is a wasteful number, since it uses less digits than its factorization.

491424473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8775.

The product of its digits is 96768, while the sum is 38.

The square root of 491424473 is about 22168.0958361335. The cubic root of 491424473 is about 789.1367342057.

The spelling of 491424473 in words is "four hundred ninety-one million, four hundred twenty-four thousand, four hundred seventy-three".