3981433 has 4 divisors (see below), whose sum is σ = 3987280. Its totient is φ = 3975588.

The previous prime is 3981421. The next prime is 3981449. The reversal of 3981433 is 3341893.

3981433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3981433 - 2⁵ = 3981401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3981395 and 3981404.

It is not an unprimeable number, because it can be changed into a prime (3981403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1743 + ... + 3316.

It is an arithmetic number, because the mean of its divisors is an integer number (996820).

Almost surely, 2^3981433 is an apocalyptic number.

It is an amenable number.

3981433 is a deficient number, since it is larger than the sum of its proper divisors (5847).

3981433 is an equidigital number, since it uses as much as digits as its factorization.

3981433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5846.

The product of its digits is 7776, while the sum is 31.

The square root of 3981433 is about 1995.3528510015. The cubic root of 3981433 is about 158.4941135650.

The spelling of 3981433 in words is "three million, nine hundred eighty-one thousand, four hundred thirty-three".