9665047 has 4 divisors (see below), whose sum is σ = 11045776. Its totient is φ = 8284320.

The previous prime is 9665041. The next prime is 9665063. The reversal of 9665047 is 7405669.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7405669 = 503 ⋅14723.

It is a cyclic number.

It is not a de Polignac number, because 9665047 - 2³ = 9665039 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9664997 and 9665015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9665041) 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 3 ways as a sum of consecutive naturals, for example, 690354 + ... + 690367.

It is an arithmetic number, because the mean of its divisors is an integer number (2761444).

Almost surely, 2^9665047 is an apocalyptic number.

9665047 is a deficient number, since it is larger than the sum of its proper divisors (1380729).

9665047 is a wasteful number, since it uses less digits than its factorization.

9665047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380728.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 9665047 is about 3108.8658703778. The cubic root of 9665047 is about 213.0106528502.

The spelling of 9665047 in words is "nine million, six hundred sixty-five thousand, forty-seven".