718456073 has 2 divisors, whose sum is σ = 718456074. Its totient is φ = 718456072.

The previous prime is 718456027. The next prime is 718456087. The reversal of 718456073 is 370654817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 717811264 + 644809 = 26792^2 + 803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-718456073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 718456073.

It is not a weakly prime, because it can be changed into another prime (718426073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359228036 + 359228037.

It is an arithmetic number, because the mean of its divisors is an integer number (359228037).

Almost surely, 2^718456073 is an apocalyptic number.

It is an amenable number.

718456073 is a deficient number, since it is larger than the sum of its proper divisors (1).

718456073 is an equidigital number, since it uses as much as digits as its factorization.

718456073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 718456073 is about 26804.0309095479. The cubic root of 718456073 is about 895.6398462347.

The spelling of 718456073 in words is "seven hundred eighteen million, four hundred fifty-six thousand, seventy-three".