717426996 has 96 divisors (see below), whose sum is σ = 2082423168. Its totient is φ = 188866560.

The previous prime is 717426989. The next prime is 717427019. The reversal of 717426996 is 699624717.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16876 + ... + 41468.

It is an arithmetic number, because the mean of its divisors is an integer number (21691908).

Almost surely, 2^717426996 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 717426996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1041211584).

717426996 is an abundant number, since it is smaller than the sum of its proper divisors (1364996172).

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

717426996 is a wasteful number, since it uses less digits than its factorization.

717426996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24641 (or 24639 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 51.

The square root of 717426996 is about 26784.8277201852. The cubic root of 717426996 is about 895.2120201379.

The spelling of 717426996 in words is "seven hundred seventeen million, four hundred twenty-six thousand, nine hundred ninety-six".