9897941 has 2 divisors, whose sum is σ = 9897942. Its totient is φ = 9897940.

The previous prime is 9897931. The next prime is 9897971. The reversal of 9897941 is 1497989.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9897316 + 625 = 3146^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 9897941 - 2¹⁸ = 9635797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9897931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4948970 + 4948971.

It is an arithmetic number, because the mean of its divisors is an integer number (4948971).

Almost surely, 2^9897941 is an apocalyptic number.

It is an amenable number.

9897941 is a deficient number, since it is larger than the sum of its proper divisors (1).

9897941 is an equidigital number, since it uses as much as digits as its factorization.

9897941 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 47.

The square root of 9897941 is about 3146.0993309176. The cubic root of 9897941 is about 214.7080298602.

The spelling of 9897941 in words is "nine million, eight hundred ninety-seven thousand, nine hundred forty-one".