491463715 has 4 divisors (see below), whose sum is σ = 589756464. Its totient is φ = 393170968.

The previous prime is 491463703. The next prime is 491463719. The reversal of 491463715 is 517364194.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 491463715 - 2⁵ = 491463683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491463719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49146367 + ... + 49146376.

It is an arithmetic number, because the mean of its divisors is an integer number (147439116).

Almost surely, 2^491463715 is an apocalyptic number.

491463715 is a deficient number, since it is larger than the sum of its proper divisors (98292749).

491463715 is an equidigital number, since it uses as much as digits as its factorization.

491463715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98292748.

The product of its digits is 90720, while the sum is 40.

The square root of 491463715 is about 22168.9809192935. The cubic root of 491463715 is about 789.1577387759.

The spelling of 491463715 in words is "four hundred ninety-one million, four hundred sixty-three thousand, seven hundred fifteen".