9664915 has 8 divisors (see below), whose sum is σ = 12490128. Its totient is φ = 7137120.

The previous prime is 9664913. The next prime is 9664927. The reversal of 9664915 is 5194669.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9664915 - 2¹ = 9664913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9664913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74281 + ... + 74410.

It is an arithmetic number, because the mean of its divisors is an integer number (1561266).

Almost surely, 2^9664915 is an apocalyptic number.

9664915 is a deficient number, since it is larger than the sum of its proper divisors (2825213).

9664915 is a wasteful number, since it uses less digits than its factorization.

9664915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148709.

The product of its digits is 58320, while the sum is 40.

The square root of 9664915 is about 3108.8446406985. The cubic root of 9664915 is about 213.0096831176.

The spelling of 9664915 in words is "nine million, six hundred sixty-four thousand, nine hundred fifteen".