9808961 has 2 divisors, whose sum is σ = 9808962. Its totient is φ = 9808960.

The previous prime is 9808891. The next prime is 9808969. The reversal of 9808961 is 1698089.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9394225 + 414736 = 3065^2 + 644^2 .

It is an emirp because it is prime and its reverse (1698089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9808961 - 2²² = 5614657 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9808969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4904480 + 4904481.

It is an arithmetic number, because the mean of its divisors is an integer number (4904481).

Almost surely, 2^9808961 is an apocalyptic number.

It is an amenable number.

9808961 is a deficient number, since it is larger than the sum of its proper divisors (1).

9808961 is an equidigital number, since it uses as much as digits as its factorization.

9808961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 9808961 is about 3131.9260846961. The cubic root of 9808961 is about 214.0627018060.

The spelling of 9808961 in words is "nine million, eight hundred eight thousand, nine hundred sixty-one".