9799897 has 2 divisors, whose sum is σ = 9799898. Its totient is φ = 9799896.

The previous prime is 9799849. The next prime is 9799903. The reversal of 9799897 is 7989979.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6205081 + 3594816 = 2491^2 + 1896^2 .

It is a cyclic number.

It is not a de Polignac number, because 9799897 - 2¹¹ = 9797849 is a prime.

It is not a weakly prime, because it can be changed into another prime (9799847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4899948 + 4899949.

It is an arithmetic number, because the mean of its divisors is an integer number (4899949).

Almost surely, 2^9799897 is an apocalyptic number.

It is an amenable number.

9799897 is a deficient number, since it is larger than the sum of its proper divisors (1).

9799897 is an equidigital number, since it uses as much as digits as its factorization.

9799897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2571912, while the sum is 58.

The square root of 9799897 is about 3130.4787173849. The cubic root of 9799897 is about 213.9967463913.

The spelling of 9799897 in words is "nine million, seven hundred ninety-nine thousand, eight hundred ninety-seven".