9903897 has 8 divisors (see below), whose sum is σ = 14672480. Its totient is φ = 6602580.

The previous prime is 9903871. The next prime is 9903913. The reversal of 9903897 is 7983099.

It is a happy number.

It is not a de Polignac number, because 9903897 - 2¹⁰ = 9902873 is a prime.

It is a Duffinian number.

9903897 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9903847) 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 in 7 ways as a sum of consecutive naturals, for example, 183379 + ... + 183432.

It is an arithmetic number, because the mean of its divisors is an integer number (1834060).

Almost surely, 2^9903897 is an apocalyptic number.

It is an amenable number.

9903897 is a deficient number, since it is larger than the sum of its proper divisors (4768583).

9903897 is a wasteful number, since it uses less digits than its factorization.

9903897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366820 (or 366814 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 45.

The square root of 9903897 is about 3147.0457575320. The cubic root of 9903897 is about 214.7510874553.

The spelling of 9903897 in words is "nine million, nine hundred three thousand, eight hundred ninety-seven".