9897250 has 64 divisors (see below), whose sum is σ = 20891520. Its totient is φ = 3480000.

The previous prime is 9897227. The next prime is 9897253. The reversal of 9897250 is 527989.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (9897253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 162220 + ... + 162280.

It is an arithmetic number, because the mean of its divisors is an integer number (326430).

Almost surely, 2^9897250 is an apocalyptic number.

9897250 is an abundant number, since it is smaller than the sum of its proper divisors (10994270).

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

9897250 is a wasteful number, since it uses less digits than its factorization.

9897250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 138 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 9897250 is about 3145.9895104720. The cubic root of 9897250 is about 214.7030333091.

The spelling of 9897250 in words is "nine million, eight hundred ninety-seven thousand, two hundred fifty".