9953897 has 2 divisors, whose sum is σ = 9953898. Its totient is φ = 9953896.

The previous prime is 9953887. The next prime is 9953899. The reversal of 9953897 is 7983599.

9953897 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5837056 + 4116841 = 2416^2 + 2029^2 .

It is a cyclic number.

It is not a de Polignac number, because 9953897 - 2²⁰ = 8905321 is a prime.

Together with 9953899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9953899) 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, 4976948 + 4976949.

It is an arithmetic number, because the mean of its divisors is an integer number (4976949).

Almost surely, 2^9953897 is an apocalyptic number.

It is an amenable number.

9953897 is a deficient number, since it is larger than the sum of its proper divisors (1).

9953897 is an equidigital number, since it uses as much as digits as its factorization.

9953897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 50.

The square root of 9953897 is about 3154.9797146733. The cubic root of 9953897 is about 215.1118725518. Note that the first 3 decimals are identical.

The spelling of 9953897 in words is "nine million, nine hundred fifty-three thousand, eight hundred ninety-seven".