7394443947 has 72 divisors (see below), whose sum is σ = 12529717200. Its totient is φ = 4184294400.

The previous prime is 7394443939. The next prime is 7394443967. The reversal of 7394443947 is 7493444937.

7394443947 is a `hidden beast` number, since 73 + 94 + 443 + 9 + 47 = 666.

It is not a de Polignac number, because 7394443947 - 2³ = 7394443939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7394443893 and 7394443902.

It is not an unprimeable number, because it can be changed into a prime (7394443967) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2423679 + ... + 2426727.

It is an arithmetic number, because the mean of its divisors is an integer number (174023850).

Almost surely, 2^7394443947 is an apocalyptic number.

7394443947 is a deficient number, since it is larger than the sum of its proper divisors (5135273253).

7394443947 is a wasteful number, since it uses less digits than its factorization.

7394443947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3225 (or 3211 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 54.

The square root of 7394443947 is about 85990.9527043398. The cubic root of 7394443947 is about 1948.2073331477.

The spelling of 7394443947 in words is "seven billion, three hundred ninety-four million, four hundred forty-three thousand, nine hundred forty-seven".