9968261 has 2 divisors, whose sum is σ = 9968262. Its totient is φ = 9968260.

The previous prime is 9968243. The next prime is 9968263. The reversal of 9968261 is 1628699.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9728161 + 240100 = 3119^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 9968261 - 2⁶ = 9968197 is a prime.

Together with 9968263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9968263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4984130 + 4984131.

It is an arithmetic number, because the mean of its divisors is an integer number (4984131).

Almost surely, 2^9968261 is an apocalyptic number.

It is an amenable number.

9968261 is a deficient number, since it is larger than the sum of its proper divisors (1).

9968261 is an equidigital number, since it uses as much as digits as its factorization.

9968261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 9968261 is about 3157.2552953475. The cubic root of 9968261 is about 215.2152954239.

The spelling of 9968261 in words is "nine million, nine hundred sixty-eight thousand, two hundred sixty-one".