86570704441 has 15 divisors (see below), whose sum is σ = 93838576443. Its totient is φ = 79865519760.

The previous prime is 86570704427. The next prime is 86570704457. The reversal of 86570704441 is 14440707568.

The square root of 86570704441 is 294229.

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

It can be written as a sum of positive squares in 7 ways, for example, as 46578704041 + 39992000400 = 215821^2 + 199980^2 .

It is a de Polignac number, because none of the positive numbers 2^k-86570704441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86570704391 and 86570704400.

It is not an unprimeable number, because it can be changed into a prime (86576704441) 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 14 ways as a sum of consecutive naturals, for example, 49723831 + ... + 49725571.

Almost surely, 2^86570704441 is an apocalyptic number.

86570704441 is the 294229-th square number.

86570704441 is the 147115-th centered octagonal number.

It is an amenable number.

86570704441 is a deficient number, since it is larger than the sum of its proper divisors (7267872002).

86570704441 is an frugal number, since it uses more digits than its factorization.

86570704441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534 (or 1754 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 86570704441 in words is "eighty-six billion, five hundred seventy million, seven hundred four thousand, four hundred forty-one".