9666385 has 4 divisors (see below), whose sum is σ = 11599668. Its totient is φ = 7733104.

The previous prime is 9666373. The next prime is 9666401. The reversal of 9666385 is 5836669.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1192464 + 8473921 = 1092^2 + 2911^2 .

It is a cyclic number.

It is not a de Polignac number, because 9666385 - 2⁷ = 9666257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 966634 + ... + 966643.

It is an arithmetic number, because the mean of its divisors is an integer number (2899917).

Almost surely, 2^9666385 is an apocalyptic number.

It is an amenable number.

9666385 is a deficient number, since it is larger than the sum of its proper divisors (1933283).

9666385 is a wasteful number, since it uses less digits than its factorization.

9666385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1933282.

The product of its digits is 233280, while the sum is 43.

The square root of 9666385 is about 3109.0810539450. The cubic root of 9666385 is about 213.0204819144.

The spelling of 9666385 in words is "nine million, six hundred sixty-six thousand, three hundred eighty-five".