705536681 has 2 divisors, whose sum is σ = 705536682. Its totient is φ = 705536680.

The previous prime is 705536593. The next prime is 705536701. The reversal of 705536681 is 186635507.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 701773081 + 3763600 = 26491^2 + 1940^2 .

It is a cyclic number.

It is not a de Polignac number, because 705536681 - 2¹⁰ = 705535657 is a prime.

It is a super-2 number, since 2×705536681² = 995564016472991522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (705536081) 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 as a sum of consecutive naturals, namely, 352768340 + 352768341.

It is an arithmetic number, because the mean of its divisors is an integer number (352768341).

Almost surely, 2^705536681 is an apocalyptic number.

It is an amenable number.

705536681 is a deficient number, since it is larger than the sum of its proper divisors (1).

705536681 is an equidigital number, since it uses as much as digits as its factorization.

705536681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 705536681 is about 26561.9404599890. The cubic root of 705536681 is about 890.2388287219.

The spelling of 705536681 in words is "seven hundred five million, five hundred thirty-six thousand, six hundred eighty-one".