9897307 has 16 divisors (see below), whose sum is σ = 11750400. Its totient is φ = 8160768.

The previous prime is 9897287. The next prime is 9897313. The reversal of 9897307 is 7037989.

9897307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-9897307 is a prime.

It is a Duffinian number.

9897307 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9897367) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21819 + ... + 22267.

It is an arithmetic number, because the mean of its divisors is an integer number (734400).

Almost surely, 2^9897307 is an apocalyptic number.

9897307 is a deficient number, since it is larger than the sum of its proper divisors (1853093).

9897307 is a wasteful number, since it uses less digits than its factorization.

9897307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 9897307 is about 3145.9985696119. The cubic root of 9897307 is about 214.7034454792.

The spelling of 9897307 in words is "nine million, eight hundred ninety-seven thousand, three hundred seven".