718790497 has 2 divisors, whose sum is σ = 718790498. Its totient is φ = 718790496.

The previous prime is 718790483. The next prime is 718790509. The reversal of 718790497 is 794097817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 522762496 + 196028001 = 22864^2 + 14001^2 .

It is a cyclic number.

It is not a de Polignac number, because 718790497 - 2¹⁹ = 718266209 is a prime.

It is not a weakly prime, because it can be changed into another prime (718790407) 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 as a sum of consecutive naturals, namely, 359395248 + 359395249.

It is an arithmetic number, because the mean of its divisors is an integer number (359395249).

Almost surely, 2^718790497 is an apocalyptic number.

It is an amenable number.

718790497 is a deficient number, since it is larger than the sum of its proper divisors (1).

718790497 is an equidigital number, since it uses as much as digits as its factorization.

718790497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 889056, while the sum is 52.

The square root of 718790497 is about 26810.2684992150. The cubic root of 718790497 is about 895.7787909383.

The spelling of 718790497 in words is "seven hundred eighteen million, seven hundred ninety thousand, four hundred ninety-seven".