3466821 has 4 divisors (see below), whose sum is σ = 4622432. Its totient is φ = 2311212.

The previous prime is 3466811. The next prime is 3466829. The reversal of 3466821 is 1286643.

3466821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3466821 - 2¹⁰ = 3465797 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3466829) 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 3 ways as a sum of consecutive naturals, for example, 577801 + ... + 577806.

It is an arithmetic number, because the mean of its divisors is an integer number (1155608).

Almost surely, 2^3466821 is an apocalyptic number.

It is an amenable number.

3466821 is a deficient number, since it is larger than the sum of its proper divisors (1155611).

3466821 is a wasteful number, since it uses less digits than its factorization.

3466821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155610.

The product of its digits is 6912, while the sum is 30.

The square root of 3466821 is about 1861.9401171896. The cubic root of 3466821 is about 151.3481579445.

The spelling of 3466821 in words is "three million, four hundred sixty-six thousand, eight hundred twenty-one".