3421903 has 2 divisors, whose sum is σ = 3421904. Its totient is φ = 3421902.

The previous prime is 3421877. The next prime is 3421907. The reversal of 3421903 is 3091243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3421903 - 2¹⁷ = 3290831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3421907) 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, 1710951 + 1710952.

It is an arithmetic number, because the mean of its divisors is an integer number (1710952).

Almost surely, 2^3421903 is an apocalyptic number.

3421903 is a deficient number, since it is larger than the sum of its proper divisors (1).

3421903 is an equidigital number, since it uses as much as digits as its factorization.

3421903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 3421903 is about 1849.8386416117. The cubic root of 3421903 is about 150.6916650205.

The spelling of 3421903 in words is "three million, four hundred twenty-one thousand, nine hundred three".