491472291 has 8 divisors (see below), whose sum is σ = 655669840. Its totient is φ = 327461472.

The previous prime is 491472283. The next prime is 491472323. The reversal of 491472291 is 192274194.

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

It is not a de Polignac number, because 491472291 - 2³ = 491472283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491472271) 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, 40420 + ... + 51153.

It is an arithmetic number, because the mean of its divisors is an integer number (81958730).

Almost surely, 2^491472291 is an apocalyptic number.

491472291 is a deficient number, since it is larger than the sum of its proper divisors (164197549).

491472291 is a wasteful number, since it uses less digits than its factorization.

491472291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93365.

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

The square root of 491472291 is about 22169.1743418649. The cubic root of 491472291 is about 789.1623289943.

The spelling of 491472291 in words is "four hundred ninety-one million, four hundred seventy-two thousand, two hundred ninety-one".