717668748 has 60 divisors (see below), whose sum is σ = 1886113152. Its totient is φ = 237949920.

The previous prime is 717668737. The next prime is 717668807. The reversal of 717668748 is 847866717.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 717668694 and 717668703.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 56086 + ... + 67682.

Almost surely, 2^717668748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 717668748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (943056576).

717668748 is an abundant number, since it is smaller than the sum of its proper divisors (1168444404).

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

717668748 is a wasteful number, since it uses less digits than its factorization.

717668748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11804 (or 11793 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 54.

The square root of 717668748 is about 26789.3401934426. The cubic root of 717668748 is about 895.3125623037.

The spelling of 717668748 in words is "seven hundred seventeen million, six hundred sixty-eight thousand, seven hundred forty-eight".