9645738 has 16 divisors (see below), whose sum is σ = 19331136. Its totient is φ = 3208640.

The previous prime is 9645677. The next prime is 9645739. The reversal of 9645738 is 8375469.

It is a happy number.

9645738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9645738.

It is not an unprimeable number, because it can be changed into a prime (9645739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2203 + ... + 4913.

It is an arithmetic number, because the mean of its divisors is an integer number (1208196).

Almost surely, 2^9645738 is an apocalyptic number.

9645738 is an abundant number, since it is smaller than the sum of its proper divisors (9685398).

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

9645738 is a wasteful number, since it uses less digits than its factorization.

9645738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3309.

The product of its digits is 181440, while the sum is 42.

The square root of 9645738 is about 3105.7588444694. The cubic root of 9645738 is about 212.8687061439.

The spelling of 9645738 in words is "nine million, six hundred forty-five thousand, seven hundred thirty-eight".