9897265 has 32 divisors (see below), whose sum is σ = 14400000. Its totient is φ = 6519744.

The previous prime is 9897263. The next prime is 9897287. The reversal of 9897265 is 5627989.

It is not a de Polignac number, because 9897265 - 2¹ = 9897263 is a prime.

Its product of digits (272160) is a multiple of the sum of its prime divisors (240).

It is not an unprimeable number, because it can be changed into a prime (9897263) 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, 49636 + ... + 49834.

It is an arithmetic number, because the mean of its divisors is an integer number (450000).

Almost surely, 2^9897265 is an apocalyptic number.

9897265 is the 1990-th heptagonal number.

It is an amenable number.

9897265 is a deficient number, since it is larger than the sum of its proper divisors (4502735).

9897265 is a wasteful number, since it uses less digits than its factorization.

9897265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254 (or 240 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 9897265 is about 3145.9918944587. The cubic root of 9897265 is about 214.7031417751.

The spelling of 9897265 in words is "nine million, eight hundred ninety-seven thousand, two hundred sixty-five".