717998376 has 64 divisors (see below), whose sum is σ = 1833451200. Its totient is φ = 234242048.

The previous prime is 717998371. The next prime is 717998377. The reversal of 717998376 is 673899717.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (717998371) 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, 362926 + ... + 364898.

It is an arithmetic number, because the mean of its divisors is an integer number (28647675).

Almost surely, 2^717998376 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 717998376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (916725600).

717998376 is an abundant number, since it is smaller than the sum of its proper divisors (1115452824).

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

717998376 is a wasteful number, since it uses less digits than its factorization.

717998376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298 (or 2294 counting only the distinct ones).

The product of its digits is 4000752, while the sum is 57.

The square root of 717998376 is about 26795.4917103605. The cubic root of 717998376 is about 895.4496148173.

The spelling of 717998376 in words is "seven hundred seventeen million, nine hundred ninety-eight thousand, three hundred seventy-six".