717315880 has 64 divisors (see below), whose sum is σ = 1668522240. Its totient is φ = 277377792.

The previous prime is 717315853. The next prime is 717315889. The reversal of 717315880 is 88513717.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (717315889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153742 + ... + 158338.

It is an arithmetic number, because the mean of its divisors is an integer number (26070660).

Almost surely, 2^717315880 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 717315880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (834261120).

717315880 is an abundant number, since it is smaller than the sum of its proper divisors (951206360).

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

717315880 is a wasteful number, since it uses less digits than its factorization.

717315880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4738 (or 4734 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 40.

The square root of 717315880 is about 26782.7534058767. The cubic root of 717315880 is about 895.1658005619.

The spelling of 717315880 in words is "seven hundred seventeen million, three hundred fifteen thousand, eight hundred eighty".