3971233 has 4 divisors (see below), whose sum is σ = 4538560. Its totient is φ = 3403908.

The previous prime is 3971213. The next prime is 3971239. The reversal of 3971233 is 3321793.

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 3971233 - 2¹³ = 3963041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3971239) 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, 283653 + ... + 283666.

It is an arithmetic number, because the mean of its divisors is an integer number (1134640).

Almost surely, 2^3971233 is an apocalyptic number.

It is an amenable number.

3971233 is a deficient number, since it is larger than the sum of its proper divisors (567327).

3971233 is an equidigital number, since it uses as much as digits as its factorization.

3971233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567326.

The product of its digits is 3402, while the sum is 28.

The square root of 3971233 is about 1992.7952729771. The cubic root of 3971233 is about 158.3586495684.

The spelling of 3971233 in words is "three million, nine hundred seventy-one thousand, two hundred thirty-three".