9646389 has 6 divisors (see below), whose sum is σ = 13933686. Its totient is φ = 6430920.

The previous prime is 9646387. The next prime is 9646397. The reversal of 9646389 is 9836469.

9646389 is a `hidden beast` number, since 9 + 6 + 4 + 638 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 8910225 + 736164 = 2985^2 + 858^2 .

It is not a de Polignac number, because 9646389 - 2¹ = 9646387 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9646387) 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 5 ways as a sum of consecutive naturals, for example, 535902 + ... + 535919.

It is an arithmetic number, because the mean of its divisors is an integer number (2322281).

Almost surely, 2^9646389 is an apocalyptic number.

It is an amenable number.

9646389 is a deficient number, since it is larger than the sum of its proper divisors (4287297).

9646389 is a wasteful number, since it uses less digits than its factorization.

9646389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071827 (or 1071824 counting only the distinct ones).

The product of its digits is 279936, while the sum is 45.

The square root of 9646389 is about 3105.8636480052. The cubic root of 9646389 is about 212.8734949398.

The spelling of 9646389 in words is "nine million, six hundred forty-six thousand, three hundred eighty-nine".