9897123 has 8 divisors (see below), whose sum is σ = 13280848. Its totient is φ = 6555744.

The previous prime is 9897109. The next prime is 9897127. The reversal of 9897123 is 3217989.

9897123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9897123 - 2⁶ = 9897059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9897127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10036 + ... + 10977.

It is an arithmetic number, because the mean of its divisors is an integer number (1660106).

Almost surely, 2^9897123 is an apocalyptic number.

9897123 is a deficient number, since it is larger than the sum of its proper divisors (3383725).

9897123 is a wasteful number, since it uses less digits than its factorization.

9897123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21173.

The product of its digits is 27216, while the sum is 39.

The square root of 9897123 is about 3145.9693259789. The cubic root of 9897123 is about 214.7021149597.

The spelling of 9897123 in words is "nine million, eight hundred ninety-seven thousand, one hundred twenty-three".