9766636 has 36 divisors (see below), whose sum is σ = 19908504. Its totient is φ = 4174720.

The previous prime is 9766609. The next prime is 9766637. The reversal of 9766636 is 6366679.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9766592 and 9766601.

It is not an unprimeable number, because it can be changed into a prime (9766637) 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 11 ways as a sum of consecutive naturals, for example, 7635 + ... + 8821.

It is an arithmetic number, because the mean of its divisors is an integer number (553014).

Almost surely, 2^9766636 is an apocalyptic number.

It is an amenable number.

9766636 is an abundant number, since it is smaller than the sum of its proper divisors (10141868).

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

9766636 is a wasteful number, since it uses less digits than its factorization.

9766636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230 (or 1217 counting only the distinct ones).

The product of its digits is 244944, while the sum is 43.

The square root of 9766636 is about 3125.1617558136. The cubic root of 9766636 is about 213.7543692323.

Adding to 9766636 its sum of digits (43), we get a palindrome (9766679).

The spelling of 9766636 in words is "nine million, seven hundred sixty-six thousand, six hundred thirty-six".