8394038947 has 4 divisors (see below), whose sum is σ = 9593187376. Its totient is φ = 7194890520.

The previous prime is 8394038941. The next prime is 8394038953. The reversal of 8394038947 is 7498304938.

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

It is an interprime number because it is at equal distance from previous prime (8394038941) and next prime (8394038953).

It is a cyclic number.

It is not a de Polignac number, because 8394038947 - 2¹¹ = 8394036899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8394038941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 599574204 + ... + 599574217.

It is an arithmetic number, because the mean of its divisors is an integer number (2398296844).

Almost surely, 2^8394038947 is an apocalyptic number.

8394038947 is a deficient number, since it is larger than the sum of its proper divisors (1199148429).

8394038947 is a wasteful number, since it uses less digits than its factorization.

8394038947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199148428.

The product of its (nonzero) digits is 5225472, while the sum is 55.

The square root of 8394038947 is about 91618.9879173526. The cubic root of 8394038947 is about 2032.3117432866.

The spelling of 8394038947 in words is "eight billion, three hundred ninety-four million, thirty-eight thousand, nine hundred forty-seven".