9681311 has 2 divisors, whose sum is σ = 9681312. Its totient is φ = 9681310.

The previous prime is 9681307. The next prime is 9681319. The reversal of 9681311 is 1131869.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1131869) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9681311 - 2² = 9681307 is a prime.

It is a super-3 number, since 3×9681311³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9681319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4840655 + 4840656.

It is an arithmetic number, because the mean of its divisors is an integer number (4840656).

Almost surely, 2^9681311 is an apocalyptic number.

9681311 is a deficient number, since it is larger than the sum of its proper divisors (1).

9681311 is an equidigital number, since it uses as much as digits as its factorization.

9681311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 29.

The square root of 9681311 is about 3111.4805157674. The cubic root of 9681311 is about 213.1300681623.

The spelling of 9681311 in words is "nine million, six hundred eighty-one thousand, three hundred eleven".