3421816 has 8 divisors (see below), whose sum is σ = 6415920. Its totient is φ = 1710904.

The previous prime is 3421813. The next prime is 3421853. The reversal of 3421816 is 6181243.

3421816 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421813) 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, 213856 + ... + 213871.

It is an arithmetic number, because the mean of its divisors is an integer number (801990).

Almost surely, 2^3421816 is an apocalyptic number.

It is an amenable number.

3421816 is a deficient number, since it is larger than the sum of its proper divisors (2994104).

3421816 is a wasteful number, since it uses less digits than its factorization.

3421816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427733 (or 427729 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 3421816 is about 1849.8151258977. The cubic root of 3421816 is about 150.6903879254.

The spelling of 3421816 in words is "three million, four hundred twenty-one thousand, eight hundred sixteen".