9640735 has 16 divisors (see below), whose sum is σ = 12640320. Its totient is φ = 7015680.

The previous prime is 9640727. The next prime is 9640739. The reversal of 9640735 is 5370469.

It is not a de Polignac number, because 9640735 - 2³ = 9640727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9640735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9640739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3571 + ... + 5659.

It is an arithmetic number, because the mean of its divisors is an integer number (790020).

Almost surely, 2^9640735 is an apocalyptic number.

9640735 is a deficient number, since it is larger than the sum of its proper divisors (2999585).

9640735 is a wasteful number, since it uses less digits than its factorization.

9640735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2178.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 9640735 is about 3104.9533007760. The cubic root of 9640735 is about 212.8318965770.

The spelling of 9640735 in words is "nine million, six hundred forty thousand, seven hundred thirty-five".