9440681 has 2 divisors, whose sum is σ = 9440682. Its totient is φ = 9440680.

The previous prime is 9440653. The next prime is 9440707. The reversal of 9440681 is 1860449.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8265625 + 1175056 = 2875^2 + 1084^2 .

It is an emirp because it is prime and its reverse (1860449) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9440681 - 2⁶ = 9440617 is a prime.

It is a super-2 number, since 2×9440681² = 178252915487522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9440621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4720340 + 4720341.

It is an arithmetic number, because the mean of its divisors is an integer number (4720341).

Almost surely, 2^9440681 is an apocalyptic number.

It is an amenable number.

9440681 is a deficient number, since it is larger than the sum of its proper divisors (1).

9440681 is an equidigital number, since it uses as much as digits as its factorization.

9440681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 9440681 is about 3072.5691204593. The cubic root of 9440681 is about 211.3494430450.

The spelling of 9440681 in words is "nine million, four hundred forty thousand, six hundred eighty-one".