8929391947 has 8 divisors (see below), whose sum is σ = 10206424800. Its totient is φ = 7652710464.

The previous prime is 8929391941. The next prime is 8929391951. The reversal of 8929391947 is 7491939298.

8929391947 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8929391947 - 2¹¹ = 8929389899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8929391941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30922 + ... + 137167.

It is an arithmetic number, because the mean of its divisors is an integer number (1275803100).

Almost surely, 2^8929391947 is an apocalyptic number.

8929391947 is a deficient number, since it is larger than the sum of its proper divisors (1277032853).

8929391947 is a wasteful number, since it uses less digits than its factorization.

8929391947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175685.

The product of its digits is 8817984, while the sum is 61.

The square root of 8929391947 is about 94495.4599279775. The cubic root of 8929391947 is about 2074.6298810122.

The spelling of 8929391947 in words is "eight billion, nine hundred twenty-nine million, three hundred ninety-one thousand, nine hundred forty-seven".