9873897 has 12 divisors (see below), whose sum is σ = 14388336. Its totient is φ = 5973240.

The previous prime is 9873893. The next prime is 9873911. The reversal of 9873897 is 7983789.

It is a happy number.

It is not a de Polignac number, because 9873897 - 2² = 9873893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9873893) 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 11 ways as a sum of consecutive naturals, for example, 17778 + ... + 18324.

It is an arithmetic number, because the mean of its divisors is an integer number (1199028).

Almost surely, 2^9873897 is an apocalyptic number.

It is an amenable number.

9873897 is a deficient number, since it is larger than the sum of its proper divisors (4514439).

9873897 is an equidigital number, since it uses as much as digits as its factorization.

9873897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1108 (or 561 counting only the distinct ones).

The product of its digits is 762048, while the sum is 51.

The square root of 9873897 is about 3142.2757676563. The cubic root of 9873897 is about 214.5340332109.

It can be divided in two parts, 987 and 3897, that added together give a palindrome (4884).

The spelling of 9873897 in words is "nine million, eight hundred seventy-three thousand, eight hundred ninety-seven".