717432066 has 40 divisors (see below), whose sum is σ = 1731244284. Its totient is φ = 220747680.

The previous prime is 717432061. The next prime is 717432083. The reversal of 717432066 is 660234717.

It can be written as a sum of positive squares in 2 ways, for example, as 716900625 + 531441 = 26775^2 + 729^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 717432066.

It is not an unprimeable number, because it can be changed into a prime (717432061) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 168225 + ... + 172436.

Almost surely, 2^717432066 is an apocalyptic number.

717432066 is an abundant number, since it is smaller than the sum of its proper divisors (1013812218).

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

717432066 is a wasteful number, since it uses less digits than its factorization.

717432066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340688 (or 340679 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 717432066 is about 26784.9223631505. The cubic root of 717432066 is about 895.2141289305.

The spelling of 717432066 in words is "seven hundred seventeen million, four hundred thirty-two thousand, sixty-six".