716530816 has 16 divisors (see below), whose sum is σ = 1427463990. Its totient is φ = 358265344.

The previous prime is 716530769. The next prime is 716530819. The reversal of 716530816 is 618035617.

It can be written as a sum of positive squares in only one way, i.e., 593409600 + 123121216 = 24360^2 + 11096^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (716530819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2798821 + ... + 2799076.

Almost surely, 2^716530816 is an apocalyptic number.

It is an amenable number.

716530816 is a deficient number, since it is larger than the sum of its proper divisors (710933174).

716530816 is an equidigital number, since it uses as much as digits as its factorization.

716530816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597911 (or 5597899 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 716530816 is about 26768.0932455041. The cubic root of 716530816 is about 894.8391109317.

The spelling of 716530816 in words is "seven hundred sixteen million, five hundred thirty thousand, eight hundred sixteen".