9698981 has 2 divisors, whose sum is σ = 9698982. Its totient is φ = 9698980.

The previous prime is 9698957. The next prime is 9699007. The reversal of 9698981 is 1898969.

9698981 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6604900 + 3094081 = 2570^2 + 1759^2 .

It is a cyclic number.

It is not a de Polignac number, because 9698981 - 2¹⁰ = 9697957 is a prime.

It is a super-2 number, since 2×9698981² = 188140464876722, which contains 22 as substring.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9692981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4849490 + 4849491.

It is an arithmetic number, because the mean of its divisors is an integer number (4849491).

Almost surely, 2^9698981 is an apocalyptic number.

It is an amenable number.

9698981 is a deficient number, since it is larger than the sum of its proper divisors (1).

9698981 is an equidigital number, since it uses as much as digits as its factorization.

9698981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 50.

The square root of 9698981 is about 3114.3187055920. The cubic root of 9698981 is about 213.2596552754.

The spelling of 9698981 in words is "nine million, six hundred ninety-eight thousand, nine hundred eighty-one".