718492013 has 2 divisors, whose sum is σ = 718492014. Its totient is φ = 718492012.

The previous prime is 718492007. The next prime is 718492037. The reversal of 718492013 is 310294817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 718400809 + 91204 = 26803^2 + 302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-718492013 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (718492043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359246006 + 359246007.

It is an arithmetic number, because the mean of its divisors is an integer number (359246007).

Almost surely, 2^718492013 is an apocalyptic number.

It is an amenable number.

718492013 is a deficient number, since it is larger than the sum of its proper divisors (1).

718492013 is an equidigital number, since it uses as much as digits as its factorization.

718492013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 718492013 is about 26804.7013227158. The cubic root of 718492013 is about 895.6547804622.

The spelling of 718492013 in words is "seven hundred eighteen million, four hundred ninety-two thousand, thirteen".