9956565 has 24 divisors (see below), whose sum is σ = 17443608. Its totient is φ = 5253120.

The previous prime is 9956561. The next prime is 9956579. The reversal of 9956565 is 5656599.

9956565 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1153476 + 8803089 = 1074^2 + 2967^2 .

It is not a de Polignac number, because 9956565 - 2² = 9956561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9956565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9956561) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3225 + ... + 5505.

It is an arithmetic number, because the mean of its divisors is an integer number (726817).

Almost surely, 2^9956565 is an apocalyptic number.

It is an amenable number.

9956565 is a deficient number, since it is larger than the sum of its proper divisors (7487043).

9956565 is a wasteful number, since it uses less digits than its factorization.

9956565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389 (or 2386 counting only the distinct ones).

The product of its digits is 364500, while the sum is 45.

The square root of 9956565 is about 3155.4025099819. The cubic root of 9956565 is about 215.1310900572.

The spelling of 9956565 in words is "nine million, nine hundred fifty-six thousand, five hundred sixty-five".