3409891 has 2 divisors, whose sum is σ = 3409892. Its totient is φ = 3409890.

The previous prime is 3409853. The next prime is 3409927. The reversal of 3409891 is 1989043.

3409891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3409891 - 2¹⁷ = 3278819 is a prime.

It is not a weakly prime, because it can be changed into another prime (3409801) 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 as a sum of consecutive naturals, namely, 1704945 + 1704946.

It is an arithmetic number, because the mean of its divisors is an integer number (1704946).

Almost surely, 2^3409891 is an apocalyptic number.

3409891 is a deficient number, since it is larger than the sum of its proper divisors (1).

3409891 is an equidigital number, since it uses as much as digits as its factorization.

3409891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 3409891 is about 1846.5890176214. The cubic root of 3409891 is about 150.5151326013.

The spelling of 3409891 in words is "three million, four hundred nine thousand, eight hundred ninety-one".