9897320 has 16 divisors (see below), whose sum is σ = 22269060. Its totient is φ = 3958912.

The previous prime is 9897319. The next prime is 9897343. The reversal of 9897320 is 237989.

It can be written as a sum of positive squares in 2 ways, for example, as 9897316 + 4 = 3146^2 + 2^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123677 + ... + 123756.

Almost surely, 2^9897320 is an apocalyptic number.

It is an amenable number.

9897320 is an abundant number, since it is smaller than the sum of its proper divisors (12371740).

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

9897320 is a wasteful number, since it uses less digits than its factorization.

9897320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247444 (or 247440 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 9897320 is about 3146.0006357278. Note that the first 3 decimals coincide. The cubic root of 9897320 is about 214.7035394826.

The spelling of 9897320 in words is "nine million, eight hundred ninety-seven thousand, three hundred twenty".