3981233 has 4 divisors (see below), whose sum is σ = 3986160. Its totient is φ = 3976308.

The previous prime is 3981227. The next prime is 3981253. The reversal of 3981233 is 3321893.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3321893 = 181 ⋅18353.

It is a cyclic number.

It is not a de Polignac number, because 3981233 - 2⁴ = 3981217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3981196 and 3981205.

It is not an unprimeable number, because it can be changed into a prime (3981253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 935 + ... + 2972.

It is an arithmetic number, because the mean of its divisors is an integer number (996540).

Almost surely, 2^3981233 is an apocalyptic number.

It is an amenable number.

3981233 is a deficient number, since it is larger than the sum of its proper divisors (4927).

3981233 is a wasteful number, since it uses less digits than its factorization.

3981233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4926.

The product of its digits is 3888, while the sum is 29.

The square root of 3981233 is about 1995.3027339229. The cubic root of 3981233 is about 158.4914596333.

The spelling of 3981233 in words is "three million, nine hundred eighty-one thousand, two hundred thirty-three".