3204391 has 8 divisors (see below), whose sum is σ = 3289968. Its totient is φ = 3120000.

The previous prime is 3204389. The next prime is 3204401. The reversal of 3204391 is 1934023.

3204391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 3204391 - 2¹ = 3204389 is a prime.

It is a Duffinian number.

3204391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3204791) 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 7 ways as a sum of consecutive naturals, for example, 7791 + ... + 8191.

It is an arithmetic number, because the mean of its divisors is an integer number (411246).

Almost surely, 2^3204391 is an apocalyptic number.

3204391 is a deficient number, since it is larger than the sum of its proper divisors (85577).

3204391 is a wasteful number, since it uses less digits than its factorization.

3204391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3204391 is about 1790.0812830707. The cubic root of 3204391 is about 147.4286315658.

The spelling of 3204391 in words is "three million, two hundred four thousand, three hundred ninety-one".