717450720 has 384 divisors, whose sum is σ = 2757888000. Its totient is φ = 153280512.

The previous prime is 717450719. The next prime is 717450733. The reversal of 717450720 is 27054717.

It is a happy number.

717450720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3605181 + ... + 3605379.

It is an arithmetic number, because the mean of its divisors is an integer number (7182000).

Almost surely, 2^717450720 is an apocalyptic number.

717450720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 717450720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378944000).

717450720 is an abundant number, since it is smaller than the sum of its proper divisors (2040437280).

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

717450720 is a wasteful number, since it uses less digits than its factorization.

717450720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 717450720 is about 26785.2705791821. The cubic root of 717450720 is about 895.2218877045.

The spelling of 717450720 in words is "seven hundred seventeen million, four hundred fifty thousand, seven hundred twenty".