717983 has 8 divisors (see below), whose sum is σ = 828960. Its totient is φ = 609120.

The previous prime is 717979. The next prime is 717989. The reversal of 717983 is 389717.

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

It is a cyclic number.

It is not a de Polignac number, because 717983 - 2² = 717979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 717983.

It is not an unprimeable number, because it can be changed into a prime (717989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293 + ... + 1233.

It is an arithmetic number, because the mean of its divisors is an integer number (103620).

2⁷¹⁷⁹⁸³ is an apocalyptic number.

717983 is a deficient number, since it is larger than the sum of its proper divisors (110977).

717983 is a wasteful number, since it uses less digits than its factorization.

717983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057.

The product of its digits is 10584, while the sum is 35.

The square root of 717983 is about 847.3387752251. The cubic root of 717983 is about 89.5443222727.

The spelling of 717983 in words is "seven hundred seventeen thousand, nine hundred eighty-three".