491380713 has 12 divisors (see below), whose sum is σ = 711260160. Its totient is φ = 326900376.

The previous prime is 491380691. The next prime is 491380741. The reversal of 491380713 is 317083194.

It is a happy number.

It is not a de Polignac number, because 491380713 - 2²⁴ = 474603497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (491380753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52681 + ... + 61302.

It is an arithmetic number, because the mean of its divisors is an integer number (59271680).

Almost surely, 2^491380713 is an apocalyptic number.

It is an amenable number.

491380713 is a deficient number, since it is larger than the sum of its proper divisors (219879447).

491380713 is a wasteful number, since it uses less digits than its factorization.

491380713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114468 (or 114465 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 491380713 is about 22167.1088101268. The cubic root of 491380713 is about 789.1133100239.

The spelling of 491380713 in words is "four hundred ninety-one million, three hundred eighty thousand, seven hundred thirteen".