9897500 has 60 divisors (see below), whose sum is σ = 22436568. Its totient is φ = 3816000.

The previous prime is 9897473. The next prime is 9897529. The reversal of 9897500 is 57989.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 92447 + ... + 92553.

Almost surely, 2^9897500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9897500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11218284).

9897500 is an abundant number, since it is smaller than the sum of its proper divisors (12539068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9897500 is a wasteful number, since it uses less digits than its factorization.

9897500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 9897500 is about 3146.0292433479. The cubic root of 9897500 is about 214.7048410607.

The spelling of 9897500 in words is "nine million, eight hundred ninety-seven thousand, five hundred".