9645389 has 8 divisors (see below), whose sum is σ = 10495800. Its totient is φ = 8810496.

The previous prime is 9645367. The next prime is 9645401. The reversal of 9645389 is 9835469.

9645389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 128164 + 9517225 = 358^2 + 3085^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9645389 - 2⁸ = 9645133 is a prime.

It is a super-2 number, since 2×9645389² = 186067057922642, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9645319) 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, 2564 + ... + 5085.

It is an arithmetic number, because the mean of its divisors is an integer number (1311975).

Almost surely, 2^9645389 is an apocalyptic number.

It is an amenable number.

9645389 is a deficient number, since it is larger than the sum of its proper divisors (850411).

9645389 is a wasteful number, since it uses less digits than its factorization.

9645389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7759.

The product of its digits is 233280, while the sum is 44.

The square root of 9645389 is about 3105.7026580148. The cubic root of 9645389 is about 212.8661387899.

The spelling of 9645389 in words is "nine million, six hundred forty-five thousand, three hundred eighty-nine".