717489663 has 8 divisors (see below), whose sum is σ = 1043621376. Its totient is φ = 434842200.

The previous prime is 717489653. The next prime is 717489679. The reversal of 717489663 is 366984717.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 717489663 - 2¹² = 717485567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (717489653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10871023 + ... + 10871088.

It is an arithmetic number, because the mean of its divisors is an integer number (130452672).

Almost surely, 2^717489663 is an apocalyptic number.

717489663 is a deficient number, since it is larger than the sum of its proper divisors (326131713).

717489663 is a wasteful number, since it uses less digits than its factorization.

717489663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21742125.

The product of its digits is 1524096, while the sum is 51.

The square root of 717489663 is about 26785.9975173597. The cubic root of 717489663 is about 895.2380848658.

The spelling of 717489663 in words is "seven hundred seventeen million, four hundred eighty-nine thousand, six hundred sixty-three".