491360713 has 2 divisors, whose sum is σ = 491360714. Its totient is φ = 491360712.

The previous prime is 491360711. The next prime is 491360719. The reversal of 491360713 is 317063194.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400120009 + 91240704 = 20003^2 + 9552^2 .

It is a cyclic number.

It is not a de Polignac number, because 491360713 - 2¹ = 491360711 is a prime.

Together with 491360711, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (491360711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245680356 + 245680357.

It is an arithmetic number, because the mean of its divisors is an integer number (245680357).

Almost surely, 2^491360713 is an apocalyptic number.

It is an amenable number.

491360713 is a deficient number, since it is larger than the sum of its proper divisors (1).

491360713 is an equidigital number, since it uses as much as digits as its factorization.

491360713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 491360713 is about 22166.6576867150. The cubic root of 491360713 is about 789.1026038105.

The spelling of 491360713 in words is "four hundred ninety-one million, three hundred sixty thousand, seven hundred thirteen".