3966344847 has 8 divisors (see below), whose sum is σ = 5876066480. Its totient is φ = 2644229880.

The previous prime is 3966344831. The next prime is 3966344887. The reversal of 3966344847 is 7484436693.

It is not a de Polignac number, because 3966344847 - 2⁴ = 3966344831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3966344793 and 3966344802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3966344827) 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 7 ways as a sum of consecutive naturals, for example, 73450804 + ... + 73450857.

It is an arithmetic number, because the mean of its divisors is an integer number (734508310).

Almost surely, 2^3966344847 is an apocalyptic number.

3966344847 is a deficient number, since it is larger than the sum of its proper divisors (1909721633).

3966344847 is a wasteful number, since it uses less digits than its factorization.

3966344847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146901670 (or 146901664 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The square root of 3966344847 is about 62978.9238317074. The cubic root of 3966344847 is about 1582.9364883872.

The spelling of 3966344847 in words is "three billion, nine hundred sixty-six million, three hundred forty-four thousand, eight hundred forty-seven".