9644649 has 16 divisors (see below), whose sum is σ = 14939520. Its totient is φ = 5420160.

The previous prime is 9644641. The next prime is 9644653. The reversal of 9644649 is 9464469.

It is not a de Polignac number, because 9644649 - 2³ = 9644641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9644649.

It is not an unprimeable number, because it can be changed into a prime (9644641) 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 15 ways as a sum of consecutive naturals, for example, 2484 + ... + 5045.

It is an arithmetic number, because the mean of its divisors is an integer number (933720).

Almost surely, 2^9644649 is an apocalyptic number.

It is an amenable number.

9644649 is a deficient number, since it is larger than the sum of its proper divisors (5294871).

9644649 is a wasteful number, since it uses less digits than its factorization.

9644649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7600.

The product of its digits is 186624, while the sum is 42.

The square root of 9644649 is about 3105.5835200490. The cubic root of 9644649 is about 212.8606949116.

The spelling of 9644649 in words is "nine million, six hundred forty-four thousand, six hundred forty-nine".