3378391 has 2 divisors, whose sum is σ = 3378392. Its totient is φ = 3378390.

The previous prime is 3378383. The next prime is 3378439. The reversal of 3378391 is 1938733.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3378391 - 2³ = 3378383 is a prime.

It is a super-2 number, since 2×3378391² = 22827051497762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3378301) 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 as a sum of consecutive naturals, namely, 1689195 + 1689196.

It is an arithmetic number, because the mean of its divisors is an integer number (1689196).

Almost surely, 2^3378391 is an apocalyptic number.

3378391 is a deficient number, since it is larger than the sum of its proper divisors (1).

3378391 is an equidigital number, since it uses as much as digits as its factorization.

3378391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 34.

The square root of 3378391 is about 1838.0399886836. The cubic root of 3378391 is about 150.0502202214.

The spelling of 3378391 in words is "three million, three hundred seventy-eight thousand, three hundred ninety-one".