9640339 has 4 divisors (see below), whose sum is σ = 9652824. Its totient is φ = 9627856.

The previous prime is 9640333. The next prime is 9640361. The reversal of 9640339 is 9330469.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9640339 - 2⁹ = 9639827 is a prime.

It is a super-2 number, since 2×9640339² = 185872272069842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9640333) 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 3 ways as a sum of consecutive naturals, for example, 5002 + ... + 6655.

It is an arithmetic number, because the mean of its divisors is an integer number (2413206).

Almost surely, 2^9640339 is an apocalyptic number.

9640339 is a deficient number, since it is larger than the sum of its proper divisors (12485).

9640339 is a wasteful number, since it uses less digits than its factorization.

9640339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12484.

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 9640339 is about 3104.8895310462. The cubic root of 9640339 is about 212.8289824636.

The spelling of 9640339 in words is "nine million, six hundred forty thousand, three hundred thirty-nine".