716734681 has 12 divisors (see below), whose sum is σ = 799414252. Its totient is φ = 638777664.

The previous prime is 716734661. The next prime is 716734687. The reversal of 716734681 is 186437617.

It can be written as a sum of positive squares in 6 ways, for example, as 2509056 + 714225625 = 1584^2 + 26725^2 .

It is not a de Polignac number, because 716734681 - 2⁷ = 716734553 is a prime.

It is a super-2 number, since 2×716734681² = 1027417205896343522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (716734687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21846 + ... + 43711.

Almost surely, 2^716734681 is an apocalyptic number.

It is an amenable number.

716734681 is a deficient number, since it is larger than the sum of its proper divisors (82679571).

716734681 is a wasteful number, since it uses less digits than its factorization.

716734681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65628 (or 65599 counting only the distinct ones).

The product of its digits is 169344, while the sum is 43.

The square root of 716734681 is about 26771.9009597750. The cubic root of 716734681 is about 894.9239684483.

The spelling of 716734681 in words is "seven hundred sixteen million, seven hundred thirty-four thousand, six hundred eighty-one".