717641772 has 48 divisors (see below), whose sum is σ = 1735991040. Its totient is φ = 230465088.

The previous prime is 717641747. The next prime is 717641779. The reversal of 717641772 is 277146717.

It is not an unprimeable number, because it can be changed into a prime (717641779) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 180033 + ... + 183975.

It is an arithmetic number, because the mean of its divisors is an integer number (36166480).

Almost surely, 2^717641772 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 717641772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867995520).

717641772 is an abundant number, since it is smaller than the sum of its proper divisors (1018349268).

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

717641772 is a wasteful number, since it uses less digits than its factorization.

717641772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502 (or 4500 counting only the distinct ones).

The product of its digits is 115248, while the sum is 42.

The square root of 717641772 is about 26788.8367048665. The cubic root of 717641772 is about 895.3013443825.

It can be divided in two parts, 71764 and 1772, that added together give a triangular number (73536 = T₃₈₃).

The spelling of 717641772 in words is "seven hundred seventeen million, six hundred forty-one thousand, seven hundred seventy-two".