3397891 has 8 divisors (see below), whose sum is σ = 3895904. Its totient is φ = 2903040.

The previous prime is 3397873. The next prime is 3397897. The reversal of 3397891 is 1987933.

3397891 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 not a de Polignac number, because 3397891 - 2⁷ = 3397763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3397897) 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, 2371 + ... + 3523.

It is an arithmetic number, because the mean of its divisors is an integer number (486988).

Almost surely, 2^3397891 is an apocalyptic number.

3397891 is a deficient number, since it is larger than the sum of its proper divisors (498013).

3397891 is a wasteful number, since it uses less digits than its factorization.

3397891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581.

The product of its digits is 40824, while the sum is 40.

The square root of 3397891 is about 1843.3369198277. The cubic root of 3397891 is about 150.3383620926.

The spelling of 3397891 in words is "three million, three hundred ninety-seven thousand, eight hundred ninety-one".