3944893 has 8 divisors (see below), whose sum is σ = 4051712. Its totient is φ = 3839616.

The previous prime is 3944881. The next prime is 3944909. The reversal of 3944893 is 3984493.

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

It is a cyclic number.

It is not a de Polignac number, because 3944893 - 2⁵ = 3944861 is a prime.

It is a Duffinian number.

3944893 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3944813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6196 + ... + 6802.

It is an arithmetic number, because the mean of its divisors is an integer number (506464).

Almost surely, 2^3944893 is an apocalyptic number.

It is an amenable number.

3944893 is a deficient number, since it is larger than the sum of its proper divisors (106819).

3944893 is an equidigital number, since it uses as much as digits as its factorization.

3944893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771.

The product of its digits is 93312, while the sum is 40.

The square root of 3944893 is about 1986.1754705967. The cubic root of 3944893 is about 158.0077574571.

The spelling of 3944893 in words is "three million, nine hundred forty-four thousand, eight hundred ninety-three".