717476489 has 2 divisors, whose sum is σ = 717476490. Its totient is φ = 717476488.

The previous prime is 717476471. The next prime is 717476491. The reversal of 717476489 is 984674717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 700502089 + 16974400 = 26467^2 + 4120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-717476489 is a prime.

Together with 717476491, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 717476489.

It is not a weakly prime, because it can be changed into another prime (717476429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358738244 + 358738245.

It is an arithmetic number, because the mean of its divisors is an integer number (358738245).

Almost surely, 2^717476489 is an apocalyptic number.

It is an amenable number.

717476489 is a deficient number, since it is larger than the sum of its proper divisors (1).

717476489 is an equidigital number, since it uses as much as digits as its factorization.

717476489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2370816, while the sum is 53.

The square root of 717476489 is about 26785.7516041645. The cubic root of 717476489 is about 895.2326056051.

The spelling of 717476489 in words is "seven hundred seventeen million, four hundred seventy-six thousand, four hundred eighty-nine".