3944920893 has 8 divisors (see below), whose sum is σ = 5260216800. Its totient is φ = 2629786128.

The previous prime is 3944920867. The next prime is 3944920913. The reversal of 3944920893 is 3980294493.

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

It is not a de Polignac number, because 3944920893 - 2⁶ = 3944920829 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944920823) 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, 39303 + ... + 97131.

It is an arithmetic number, because the mean of its divisors is an integer number (657527100).

Almost surely, 2^3944920893 is an apocalyptic number.

It is an amenable number.

3944920893 is a deficient number, since it is larger than the sum of its proper divisors (1315295907).

3944920893 is a wasteful number, since it uses less digits than its factorization.

3944920893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80571.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The square root of 3944920893 is about 62808.6052464151. The cubic root of 3944920893 is about 1580.0812986261.

The spelling of 3944920893 in words is "three billion, nine hundred forty-four million, nine hundred twenty thousand, eight hundred ninety-three".