3944926873 has 2 divisors, whose sum is σ = 3944926874. Its totient is φ = 3944926872.

The previous prime is 3944926871. The next prime is 3944926877. The reversal of 3944926873 is 3786294493.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3387589209 + 557337664 = 58203^2 + 23608^2 .

It is a cyclic number.

It is not a de Polignac number, because 3944926873 - 2¹ = 3944926871 is a prime.

Together with 3944926871, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3944926871) 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 as a sum of consecutive naturals, namely, 1972463436 + 1972463437.

It is an arithmetic number, because the mean of its divisors is an integer number (1972463437).

Almost surely, 2^3944926873 is an apocalyptic number.

It is an amenable number.

3944926873 is a deficient number, since it is larger than the sum of its proper divisors (1).

3944926873 is an equidigital number, since it uses as much as digits as its factorization.

3944926873 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 55.

The square root of 3944926873 is about 62808.6528513389. The cubic root of 3944926873 is about 1580.0820970267.

The spelling of 3944926873 in words is "three billion, nine hundred forty-four million, nine hundred twenty-six thousand, eight hundred seventy-three".