491884327 has 8 divisors (see below), whose sum is σ = 551104272. Its totient is φ = 435081600.

The previous prime is 491884301. The next prime is 491884343. The reversal of 491884327 is 723488194.

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 491884327 - 2¹⁹ = 491360039 is a prime.

It is a super-2 number, since 2×491884327² = 483900382296485858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491884387) 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, 603874 + ... + 604687.

It is an arithmetic number, because the mean of its divisors is an integer number (68888034).

Almost surely, 2^491884327 is an apocalyptic number.

491884327 is a deficient number, since it is larger than the sum of its proper divisors (59219945).

491884327 is a wasteful number, since it uses less digits than its factorization.

491884327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208609.

The product of its digits is 387072, while the sum is 46.

The square root of 491884327 is about 22178.4653887504. The cubic root of 491884327 is about 789.3828042673.

The spelling of 491884327 in words is "four hundred ninety-one million, eight hundred eighty-four thousand, three hundred twenty-seven".