717972025 has 27 divisors (see below), whose sum is σ = 934687789. Its totient is φ = 547046720.

The previous prime is 717972011. The next prime is 717972037. The reversal of 717972025 is 520279717.

It is a happy number.

The square root of 717972025 is 26795.

It is a perfect power (a square), and thus also a powerful number.

717972025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 141395881 + 576576144 = 11891^2 + 24012^2 .

It is not a de Polignac number, because 717972025 - 2¹⁷ = 717840953 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3081309 + ... + 3081541.

Almost surely, 2^717972025 is an apocalyptic number.

717972025 is the 26795-th square number.

717972025 is the 13398-th centered octagonal number.

It is an amenable number.

717972025 is a deficient number, since it is larger than the sum of its proper divisors (216715764).

717972025 is an equidigital number, since it uses as much as digits as its factorization.

717972025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 261 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 40.

The cubic root of 717972025 is about 895.4386601586.

The spelling of 717972025 in words is "seven hundred seventeen million, nine hundred seventy-two thousand, twenty-five".