9113947 has 4 divisors (see below), whose sum is σ = 9161856. Its totient is φ = 9066040.

The previous prime is 9113941. The next prime is 9113959. The reversal of 9113947 is 7493119.

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

It is a cyclic number.

It is not a de Polignac number, because 9113947 - 2¹¹ = 9111899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9113941) 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 3 ways as a sum of consecutive naturals, for example, 23668 + ... + 24049.

It is an arithmetic number, because the mean of its divisors is an integer number (2290464).

Almost surely, 2^9113947 is an apocalyptic number.

9113947 is a deficient number, since it is larger than the sum of its proper divisors (47909).

9113947 is a wasteful number, since it uses less digits than its factorization.

9113947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47908.

The product of its digits is 6804, while the sum is 34.

The square root of 9113947 is about 3018.9314334711. The cubic root of 9113947 is about 208.8825526954.

The spelling of 9113947 in words is "nine million, one hundred thirteen thousand, nine hundred forty-seven".