9640633 has 4 divisors (see below), whose sum is σ = 9649908. Its totient is φ = 9631360.

The previous prime is 9640627. The next prime is 9640637. The reversal of 9640633 is 3360469.

9640633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4108729 + 5531904 = 2027^2 + 2352^2 .

It is a cyclic number.

It is not a de Polignac number, because 9640633 - 2⁹ = 9640121 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9640595 and 9640604.

It is not an unprimeable number, because it can be changed into a prime (9640637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2848 + ... + 5233.

It is an arithmetic number, because the mean of its divisors is an integer number (2412477).

Almost surely, 2^9640633 is an apocalyptic number.

It is an amenable number.

9640633 is a deficient number, since it is larger than the sum of its proper divisors (9275).

9640633 is a wasteful number, since it uses less digits than its factorization.

9640633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9274.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 9640633 is about 3104.9368753648. The cubic root of 9640633 is about 212.8311459796.

The spelling of 9640633 in words is "nine million, six hundred forty thousand, six hundred thirty-three".