717996 has 12 divisors (see below), whose sum is σ = 1675352. Its totient is φ = 239328.

The previous prime is 717989. The next prime is 718007. The reversal of 717996 is 699717.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 717996.

It is an unprimeable number.

717996 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29905 + ... + 29928.

2⁷¹⁷⁹⁹⁶ is an apocalyptic number.

It is an amenable number.

717996 is an abundant number, since it is smaller than the sum of its proper divisors (957356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

717996 is a wasteful number, since it uses less digits than its factorization.

717996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59840 (or 59838 counting only the distinct ones).

The product of its digits is 23814, while the sum is 39.

The square root of 717996 is about 847.3464462662. The cubic root of 717996 is about 89.5448627076.

The spelling of 717996 in words is "seven hundred seventeen thousand, nine hundred ninety-six".