717670417 has 2 divisors, whose sum is σ = 717670418. Its totient is φ = 717670416.

The previous prime is 717670411. The next prime is 717670423. The reversal of 717670417 is 714076717.

It is a balanced prime because it is at equal distance from previous prime (717670411) and next prime (717670423).

It can be written as a sum of positive squares in only one way, i.e., 589324176 + 128346241 = 24276^2 + 11329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-717670417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 717670417.

It is not a weakly prime, because it can be changed into another prime (717670411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358835208 + 358835209.

It is an arithmetic number, because the mean of its divisors is an integer number (358835209).

Almost surely, 2^717670417 is an apocalyptic number.

It is an amenable number.

717670417 is a deficient number, since it is larger than the sum of its proper divisors (1).

717670417 is an equidigital number, since it uses as much as digits as its factorization.

717670417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57624, while the sum is 40.

The square root of 717670417 is about 26789.3713438744. The cubic root of 717670417 is about 895.3132563451.

The spelling of 717670417 in words is "seven hundred seventeen million, six hundred seventy thousand, four hundred seventeen".