718064497 has 2 divisors, whose sum is σ = 718064498. Its totient is φ = 718064496.

The previous prime is 718064491. The next prime is 718064507. The reversal of 718064497 is 794460817.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 364962816 + 353101681 = 19104^2 + 18791^2 .

It is an emirp because it is prime and its reverse (794460817) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-718064497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (718064491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359032248 + 359032249.

It is an arithmetic number, because the mean of its divisors is an integer number (359032249).

Almost surely, 2^718064497 is an apocalyptic number.

It is an amenable number.

718064497 is a deficient number, since it is larger than the sum of its proper divisors (1).

718064497 is an equidigital number, since it uses as much as digits as its factorization.

718064497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 718064497 is about 26796.7254902535. The cubic root of 718064497 is about 895.4771015120.

The spelling of 718064497 in words is "seven hundred eighteen million, sixty-four thousand, four hundred ninety-seven".