718477213 has 2 divisors, whose sum is σ = 718477214. Its totient is φ = 718477212.

The previous prime is 718477189. The next prime is 718477223. The reversal of 718477213 is 312774817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 514473124 + 204004089 = 22682^2 + 14283^2 .

It is an emirp because it is prime and its reverse (312774817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 718477213 - 2¹⁷ = 718346141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (718477223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359238606 + 359238607.

It is an arithmetic number, because the mean of its divisors is an integer number (359238607).

Almost surely, 2^718477213 is an apocalyptic number.

It is an amenable number.

718477213 is a deficient number, since it is larger than the sum of its proper divisors (1).

718477213 is an equidigital number, since it uses as much as digits as its factorization.

718477213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 40.

The square root of 718477213 is about 26804.4252503201. The cubic root of 718477213 is about 895.6486306459.

The spelling of 718477213 in words is "seven hundred eighteen million, four hundred seventy-seven thousand, two hundred thirteen".