9418939 has 4 divisors (see below), whose sum is σ = 9743760. Its totient is φ = 9094120.

The previous prime is 9418921. The next prime is 9418943. The reversal of 9418939 is 9398149.

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 9418939 - 2⁵ = 9418907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9418895 and 9418904.

It is not an unprimeable number, because it can be changed into a prime (9418909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162367 + ... + 162424.

It is an arithmetic number, because the mean of its divisors is an integer number (2435940).

Almost surely, 2^9418939 is an apocalyptic number.

9418939 is a deficient number, since it is larger than the sum of its proper divisors (324821).

9418939 is a wasteful number, since it uses less digits than its factorization.

9418939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324820.

The product of its digits is 69984, while the sum is 43.

The square root of 9418939 is about 3069.0289995372. The cubic root of 9418939 is about 211.1870715777.

The spelling of 9418939 in words is "nine million, four hundred eighteen thousand, nine hundred thirty-nine".