716128171 has 4 divisors (see below), whose sum is σ = 781230744. Its totient is φ = 651025600.

The previous prime is 716128169. The next prime is 716128243. The reversal of 716128171 is 171821617.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 716128171 - 2¹ = 716128169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716128271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32551270 + ... + 32551291.

It is an arithmetic number, because the mean of its divisors is an integer number (195307686).

Almost surely, 2^716128171 is an apocalyptic number.

716128171 is a deficient number, since it is larger than the sum of its proper divisors (65102573).

716128171 is a wasteful number, since it uses less digits than its factorization.

716128171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65102572.

The product of its digits is 4704, while the sum is 34.

The square root of 716128171 is about 26760.5712009292. The cubic root of 716128171 is about 894.6714651976.

Adding to 716128171 its reverse (171821617), we get a palindrome (887949788).

The spelling of 716128171 in words is "seven hundred sixteen million, one hundred twenty-eight thousand, one hundred seventy-one".