9706681 has 2 divisors, whose sum is σ = 9706682. Its totient is φ = 9706680.

The previous prime is 9706661. The next prime is 9706687. The reversal of 9706681 is 1866079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8880400 + 826281 = 2980^2 + 909^2 .

It is a cyclic number.

It is not a de Polignac number, because 9706681 - 2⁵ = 9706649 is a prime.

It is a super-2 number, since 2×9706681² = 188439312071522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9706681.

It is not a weakly prime, because it can be changed into another prime (9706687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4853340 + 4853341.

It is an arithmetic number, because the mean of its divisors is an integer number (4853341).

Almost surely, 2^9706681 is an apocalyptic number.

It is an amenable number.

9706681 is a deficient number, since it is larger than the sum of its proper divisors (1).

9706681 is an equidigital number, since it uses as much as digits as its factorization.

9706681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 9706681 is about 3115.5546857662. The cubic root of 9706681 is about 213.3160758067.

The spelling of 9706681 in words is "nine million, seven hundred six thousand, six hundred eighty-one".