3981893 has 8 divisors (see below), whose sum is σ = 4276800. Its totient is φ = 3693760.

The previous prime is 3981889. The next prime is 3981899.

3981893 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 3981893 - 2² = 3981889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3981893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 443 + ... + 2856.

It is an arithmetic number, because the mean of its divisors is an integer number (534600).

Almost surely, 2^3981893 is an apocalyptic number.

It is an amenable number.

3981893 is a deficient number, since it is larger than the sum of its proper divisors (294907).

3981893 is a wasteful number, since it uses less digits than its factorization.

3981893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3387.

The product of its digits is 46656, while the sum is 41.

The square root of 3981893 is about 1995.4681155057. The cubic root of 3981893 is about 158.5002172706.

The spelling of 3981893 in words is "three million, nine hundred eighty-one thousand, eight hundred ninety-three".