3420871 has 2 divisors, whose sum is σ = 3420872. Its totient is φ = 3420870.

The previous prime is 3420839. The next prime is 3420877. The reversal of 3420871 is 1780243.

3420871 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 3420871 - 2⁵ = 3420839 is a prime.

It is equal to p₂₄₄₉₅₁ and since 3420871 and 244951 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3420877) 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, 1710435 + 1710436.

It is an arithmetic number, because the mean of its divisors is an integer number (1710436).

Almost surely, 2^3420871 is an apocalyptic number.

3420871 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420871 is an equidigital number, since it uses as much as digits as its factorization.

3420871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 3420871 is about 1849.5596773286. The cubic root of 3420871 is about 150.6765146364.

The spelling of 3420871 in words is "three million, four hundred twenty thousand, eight hundred seventy-one".