3213391 has 6 divisors (see below), whose sum is σ = 3413840. Its totient is φ = 3024096.

The previous prime is 3213383. The next prime is 3213401. The reversal of 3213391 is 1933123.

It is not a de Polignac number, because 3213391 - 2³ = 3213383 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 (3217391) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5271 + ... + 5848.

Almost surely, 2^3213391 is an apocalyptic number.

3213391 is a deficient number, since it is larger than the sum of its proper divisors (200449).

3213391 is a wasteful number, since it uses less digits than its factorization.

3213391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11153 (or 11136 counting only the distinct ones).

The product of its digits is 486, while the sum is 22.

The square root of 3213391 is about 1792.5933727424. The cubic root of 3213391 is about 147.5665274920.

The spelling of 3213391 in words is "three million, two hundred thirteen thousand, three hundred ninety-one".