9698861 has 2 divisors, whose sum is σ = 9698862. Its totient is φ = 9698860.

The previous prime is 9698851. The next prime is 9698867. The reversal of 9698861 is 1688969.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9572836 + 126025 = 3094^2 + 355^2 .

It is an emirp because it is prime and its reverse (1688969) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9698861 - 2²² = 5504557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9698867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4849430 + 4849431.

It is an arithmetic number, because the mean of its divisors is an integer number (4849431).

Almost surely, 2^9698861 is an apocalyptic number.

It is an amenable number.

9698861 is a deficient number, since it is larger than the sum of its proper divisors (1).

9698861 is an equidigital number, since it uses as much as digits as its factorization.

9698861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 47.

The square root of 9698861 is about 3114.2994396814. The cubic root of 9698861 is about 213.2587757581.

The spelling of 9698861 in words is "nine million, six hundred ninety-eight thousand, eight hundred sixty-one".