718056497 has 2 divisors, whose sum is σ = 718056498. Its totient is φ = 718056496.

The previous prime is 718056467. The next prime is 718056499. The reversal of 718056497 is 794650817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 693216241 + 24840256 = 26329^2 + 4984^2 .

It is a cyclic number.

It is not a de Polignac number, because 718056497 - 2¹⁰ = 718055473 is a prime.

It is a super-2 number, since 2×718056497² = 1031210265767822018, which contains 22 as substring.

Together with 718056499, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (718056499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359028248 + 359028249.

It is an arithmetic number, because the mean of its divisors is an integer number (359028249).

Almost surely, 2^718056497 is an apocalyptic number.

It is an amenable number.

718056497 is a deficient number, since it is larger than the sum of its proper divisors (1).

718056497 is an equidigital number, since it uses as much as digits as its factorization.

718056497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 718056497 is about 26796.5762178678. The cubic root of 718056497 is about 895.4737759781.

The spelling of 718056497 in words is "seven hundred eighteen million, fifty-six thousand, four hundred ninety-seven".