3944812347 has 40 divisors (see below), whose sum is σ = 6800192256. Its totient is φ = 2232260208.

The previous prime is 3944812343. The next prime is 3944812367. The reversal of 3944812347 is 7432184493.

It is not a de Polignac number, because 3944812347 - 2² = 3944812343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3944812343) 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 39 ways as a sum of consecutive naturals, for example, 24628 + ... + 92174.

Almost surely, 2^3944812347 is an apocalyptic number.

3944812347 is a deficient number, since it is larger than the sum of its proper divisors (2855379909).

3944812347 is a wasteful number, since it uses less digits than its factorization.

3944812347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67669 (or 67660 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 3944812347 is about 62807.7411391303. The cubic root of 3944812347 is about 1580.0668063137.

The spelling of 3944812347 in words is "three billion, nine hundred forty-four million, eight hundred twelve thousand, three hundred forty-seven".