3321391 has 8 divisors (see below), whose sum is σ = 3414960. Its totient is φ = 3229248.

The previous prime is 3321323. The next prime is 3321401. The reversal of 3321391 is 1931233.

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 3321391 - 2¹³ = 3313199 is a prime.

It is a super-2 number, since 2×3321391² = 22063276349762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3321301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5685 + ... + 6241.

It is an arithmetic number, because the mean of its divisors is an integer number (426870).

Almost surely, 2^3321391 is an apocalyptic number.

3321391 is a deficient number, since it is larger than the sum of its proper divisors (93569).

3321391 is an equidigital number, since it uses as much as digits as its factorization.

3321391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713.

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

The square root of 3321391 is about 1822.4683810700. The cubic root of 3321391 is about 149.2015499843.

The spelling of 3321391 in words is "three million, three hundred twenty-one thousand, three hundred ninety-one".