716686441 has 9 divisors (see below), whose sum is σ = 756929271. Its totient is φ = 678484224.

The previous prime is 716686381. The next prime is 716686447. The reversal of 716686441 is 144686617.

The square root of 716686441 is 26771.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9126441 + 707560000 = 3021^2 + 26600^2 .

It is not a de Polignac number, because 716686441 - 2⁹ = 716685929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716686447) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 507945 + ... + 509353.

Almost surely, 2^716686441 is an apocalyptic number.

716686441 is the 26771-st square number.

716686441 is the 13386-th centered octagonal number.

It is an amenable number.

716686441 is a deficient number, since it is larger than the sum of its proper divisors (40242830).

716686441 is an frugal number, since it uses more digits than its factorization.

716686441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856 (or 1428 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The cubic root of 716686441 is about 894.9038903069.

The spelling of 716686441 in words is "seven hundred sixteen million, six hundred eighty-six thousand, four hundred forty-one".