3683428 has 18 divisors (see below), whose sum is σ = 7498806. Its totient is φ = 1578528.

The previous prime is 3683413. The next prime is 3683431. The reversal of 3683428 is 8243863.

It can be written as a sum of positive squares in only one way, i.e., 3415104 + 268324 = 1848^2 + 518^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3683393 and 3683402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9201 + ... + 9592.

Almost surely, 2^3683428 is an apocalyptic number.

It is an amenable number.

3683428 is an abundant number, since it is smaller than the sum of its proper divisors (3815378).

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

3683428 is a wasteful number, since it uses less digits than its factorization.

3683428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18811 (or 18802 counting only the distinct ones).

The product of its digits is 27648, while the sum is 34.

The square root of 3683428 is about 1919.2258856112. The cubic root of 3683428 is about 154.4367765671.

The spelling of 3683428 in words is "three million, six hundred eighty-three thousand, four hundred twenty-eight".