3220845 has 8 divisors (see below), whose sum is σ = 5153376. Its totient is φ = 1717776.

The previous prime is 3220831. The next prime is 3220849. The reversal of 3220845 is 5480223.

3220845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3220845 - 2¹⁵ = 3188077 is a prime.

3220845 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220849) 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 7 ways as a sum of consecutive naturals, for example, 107347 + ... + 107376.

It is an arithmetic number, because the mean of its divisors is an integer number (644172).

Almost surely, 2^3220845 is an apocalyptic number.

It is an amenable number.

3220845 is a deficient number, since it is larger than the sum of its proper divisors (1932531).

3220845 is a wasteful number, since it uses less digits than its factorization.

3220845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214731.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3220845 is about 1794.6712790926. The cubic root of 3220845 is about 147.6805411591.

The spelling of 3220845 in words is "three million, two hundred twenty thousand, eight hundred forty-five".