3973291 has 16 divisors (see below), whose sum is σ = 4860864. Its totient is φ = 3170304.

The previous prime is 3973289. The next prime is 3973297. The reversal of 3973291 is 1923793.

3973291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3973291 - 2¹ = 3973289 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3973297) 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 15 ways as a sum of consecutive naturals, for example, 20491 + ... + 20683.

It is an arithmetic number, because the mean of its divisors is an integer number (303804).

Almost surely, 2^3973291 is an apocalyptic number.

3973291 is a deficient number, since it is larger than the sum of its proper divisors (887573).

3973291 is a wasteful number, since it uses less digits than its factorization.

3973291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390.

The product of its digits is 10206, while the sum is 34.

The square root of 3973291 is about 1993.3115662134. The cubic root of 3973291 is about 158.3860000848.

The spelling of 3973291 in words is "three million, nine hundred seventy-three thousand, two hundred ninety-one".