716521211 has 4 divisors (see below), whose sum is σ = 818881392. Its totient is φ = 614161032.

The previous prime is 716521177. The next prime is 716521213. The reversal of 716521211 is 112125617.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112125617 = 4073 ⋅27529.

It is a cyclic number.

It is not a de Polignac number, because 716521211 - 2⁶ = 716521147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (716521213) 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, 51180080 + ... + 51180093.

It is an arithmetic number, because the mean of its divisors is an integer number (204720348).

Almost surely, 2^716521211 is an apocalyptic number.

716521211 is a deficient number, since it is larger than the sum of its proper divisors (102360181).

716521211 is a wasteful number, since it uses less digits than its factorization.

716521211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102360180.

The product of its digits is 840, while the sum is 26.

The square root of 716521211 is about 26767.9138335433. The cubic root of 716521211 is about 894.8351125142.

Adding to 716521211 its reverse (112125617), we get a palindrome (828646828).

The spelling of 716521211 in words is "seven hundred sixteen million, five hundred twenty-one thousand, two hundred eleven".