9663540 has 24 divisors (see below), whose sum is σ = 27058080. Its totient is φ = 2576928.

The previous prime is 9663539. The next prime is 9663553. The reversal of 9663540 is 453669.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 80470 + ... + 80589.

It is an arithmetic number, because the mean of its divisors is an integer number (1127420).

Almost surely, 2^9663540 is an apocalyptic number.

It is an amenable number.

9663540 is an abundant number, since it is smaller than the sum of its proper divisors (17394540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9663540 is a wasteful number, since it uses less digits than its factorization.

9663540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161071 (or 161069 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 9663540 is about 3108.6234895851. The cubic root of 9663540 is about 212.9995812110. Note that the first 3 decimals are identical.

It can be divided in two parts, 96 and 63540, that added together give a palindrome (63636).

The spelling of 9663540 in words is "nine million, six hundred sixty-three thousand, five hundred forty".