9123947 has 12 divisors (see below), whose sum is σ = 10752480. Its totient is φ = 7718256.

The previous prime is 9123943. The next prime is 9123949. The reversal of 9123947 is 7493219.

9123947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9123947 - 2² = 9123943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9123943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2693 + ... + 5049.

It is an arithmetic number, because the mean of its divisors is an integer number (896040).

Almost surely, 2^9123947 is an apocalyptic number.

9123947 is a deficient number, since it is larger than the sum of its proper divisors (1628533).

9123947 is a wasteful number, since it uses less digits than its factorization.

9123947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2450 (or 2443 counting only the distinct ones).

The product of its digits is 13608, while the sum is 35.

The square root of 9123947 is about 3020.5871945700. The cubic root of 9123947 is about 208.9589214383.

The spelling of 9123947 in words is "nine million, one hundred twenty-three thousand, nine hundred forty-seven".