3873220 has 24 divisors (see below), whose sum is σ = 8760024. Its totient is φ = 1430016.

The previous prime is 3873209. The next prime is 3873239. The reversal of 3873220 is 223783.

It is a happy number.

3873220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 553536 + 3319684 = 744^2 + 1822^2 .

It is an unprimeable number.

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, 7189 + ... + 7708.

It is an arithmetic number, because the mean of its divisors is an integer number (365001).

Almost surely, 2^3873220 is an apocalyptic number.

It is an amenable number.

3873220 is an abundant number, since it is smaller than the sum of its proper divisors (4886804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3873220 is a wasteful number, since it uses less digits than its factorization.

3873220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14919 (or 14917 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 3873220 is about 1968.0497961180. The cubic root of 3873220 is about 157.0449787961.

The spelling of 3873220 in words is "three million, eight hundred seventy-three thousand, two hundred twenty".