92705681 has 2 divisors, whose sum is σ = 92705682. Its totient is φ = 92705680.

The previous prime is 92705677. The next prime is 92705707. The reversal of 92705681 is 18650729.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53217025 + 39488656 = 7295^2 + 6284^2 .

It is an emirp because it is prime and its reverse (18650729) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 92705681 - 2² = 92705677 is a prime.

It is a super-3 number, since 3×92705681³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (92705621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46352840 + 46352841.

It is an arithmetic number, because the mean of its divisors is an integer number (46352841).

Almost surely, 2^92705681 is an apocalyptic number.

It is an amenable number.

92705681 is a deficient number, since it is larger than the sum of its proper divisors (1).

92705681 is an equidigital number, since it uses as much as digits as its factorization.

92705681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 92705681 is about 9628.3789393646. The cubic root of 92705681 is about 452.5870426655.

The spelling of 92705681 in words is "ninety-two million, seven hundred five thousand, six hundred eighty-one".