9897315 has 32 divisors (see below), whose sum is σ = 17236800. Its totient is φ = 4829184.

The previous prime is 9897313. The next prime is 9897319. The reversal of 9897315 is 5137989.

It is a happy number.

9897315 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 3146²-1.

It is not a de Polignac number, because 9897315 - 2¹ = 9897313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9897313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8911 + ... + 9959.

It is an arithmetic number, because the mean of its divisors is an integer number (538650).

Almost surely, 2^9897315 is an apocalyptic number.

9897315 is a deficient number, since it is larger than the sum of its proper divisors (7339485).

9897315 is a wasteful number, since it uses less digits than its factorization.

9897315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111.

The product of its digits is 68040, while the sum is 42.

The square root of 9897315 is about 3145.9998410680. Note that the first 3 decimals coincide. The cubic root of 9897315 is about 214.7035033275.

The spelling of 9897315 in words is "nine million, eight hundred ninety-seven thousand, three hundred fifteen".