716528731 has 4 divisors (see below), whose sum is σ = 718789392. Its totient is φ = 714268072.

The previous prime is 716528711. The next prime is 716528749. The reversal of 716528731 is 137825617.

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 716528731 - 2¹¹ = 716526683 is a prime.

It is a super-2 number, since 2×716528731² = 1026826844696940722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716528711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1129855 + ... + 1130488.

It is an arithmetic number, because the mean of its divisors is an integer number (179697348).

Almost surely, 2^716528731 is an apocalyptic number.

716528731 is a deficient number, since it is larger than the sum of its proper divisors (2260661).

716528731 is a wasteful number, since it uses less digits than its factorization.

716528731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260660.

The product of its digits is 70560, while the sum is 40.

The square root of 716528731 is about 26768.0542998553. The cubic root of 716528731 is about 894.8382429805.

The spelling of 716528731 in words is "seven hundred sixteen million, five hundred twenty-eight thousand, seven hundred thirty-one".