717725216 has 24 divisors (see below), whose sum is σ = 1521716364. Its totient is φ = 331257600.

The previous prime is 717725179. The next prime is 717725219. The reversal of 717725216 is 612527717.

It can be written as a sum of positive squares in 2 ways, for example, as 696748816 + 20976400 = 26396^2 + 4580^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 717725216.

It is not an unprimeable number, because it can be changed into a prime (717725219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 862235 + ... + 863066.

Almost surely, 2^717725216 is an apocalyptic number.

It is an amenable number.

717725216 is an abundant number, since it is smaller than the sum of its proper divisors (803991148).

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

717725216 is a wasteful number, since it uses less digits than its factorization.

717725216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1725324 (or 1725316 counting only the distinct ones).

The product of its digits is 41160, while the sum is 38.

The square root of 717725216 is about 26790.3940993782. The cubic root of 717725216 is about 895.3360435100.

The spelling of 717725216 in words is "seven hundred seventeen million, seven hundred twenty-five thousand, two hundred sixteen".