9897923 has 8 divisors (see below), whose sum is σ = 11380992. Its totient is φ = 8432136.

The previous prime is 9897919. The next prime is 9897929. The reversal of 9897923 is 3297989.

9897923 is digitally balanced in base 2, 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 a cyclic number.

It is not a de Polignac number, because 9897923 - 2² = 9897919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9897929) 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, 3065 + ... + 5402.

It is an arithmetic number, because the mean of its divisors is an integer number (1422624).

Almost surely, 2^9897923 is an apocalyptic number.

9897923 is a deficient number, since it is larger than the sum of its proper divisors (1483069).

9897923 is a wasteful number, since it uses less digits than its factorization.

9897923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8641.

The product of its digits is 244944, while the sum is 47.

The square root of 9897923 is about 3146.0964702310. The cubic root of 9897923 is about 214.7078997069.

The spelling of 9897923 in words is "nine million, eight hundred ninety-seven thousand, nine hundred twenty-three".