9645609 has 8 divisors (see below), whose sum is σ = 12943360. Its totient is φ = 6389136.

The previous prime is 9645607. The next prime is 9645611. The reversal of 9645609 is 9065469.

It is an interprime number because it is at equal distance from previous prime (9645607) and next prime (9645611).

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

It is not a de Polignac number, because 9645609 - 2¹ = 9645607 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9645607) 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 7 ways as a sum of consecutive naturals, for example, 9769 + ... + 10710.

It is an arithmetic number, because the mean of its divisors is an integer number (1617920).

Almost surely, 2^9645609 is an apocalyptic number.

It is an amenable number.

9645609 is a deficient number, since it is larger than the sum of its proper divisors (3297751).

9645609 is a wasteful number, since it uses less digits than its factorization.

9645609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20639.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 9645609 is about 3105.7380765287. The cubic root of 9645609 is about 212.8677571865.

The spelling of 9645609 in words is "nine million, six hundred forty-five thousand, six hundred nine".