3873428 has 12 divisors (see below), whose sum is σ = 7300020. Its totient is φ = 1787712.

The previous prime is 3873427. The next prime is 3873431. The reversal of 3873428 is 8243783.

3873428 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 2 ways, for example, as 1507984 + 2365444 = 1228^2 + 1538^2 .

It is a super-3 number, since 3×3873428³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3873427) 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, 37193 + ... + 37296.

It is an arithmetic number, because the mean of its divisors is an integer number (608335).

Almost surely, 2^3873428 is an apocalyptic number.

It is an amenable number.

3873428 is a deficient number, since it is larger than the sum of its proper divisors (3426592).

3873428 is a wasteful number, since it uses less digits than its factorization.

3873428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74506 (or 74504 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 3873428 is about 1968.1026395999. The cubic root of 3873428 is about 157.0477899602.

The spelling of 3873428 in words is "three million, eight hundred seventy-three thousand, four hundred twenty-eight".