3862728 has 48 divisors (see below), whose sum is σ = 10854480. Its totient is φ = 1286928.

The previous prime is 3862717. The next prime is 3862739. The reversal of 3862728 is 8272683.

It is a happy number.

3862728 is a `hidden beast` number, since 3 + 8 + 627 + 28 = 666.

3862728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3862717) and next prime (3862739).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3862692 and 3862701.

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 11 ways as a sum of consecutive naturals, for example, 951 + ... + 2937.

It is an arithmetic number, because the mean of its divisors is an integer number (226135).

Almost surely, 2^3862728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3862728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5427240).

3862728 is an abundant number, since it is smaller than the sum of its proper divisors (6991752).

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

3862728 is a wasteful number, since it uses less digits than its factorization.

3862728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008 (or 1992 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 3862728 is about 1965.3824055384. The cubic root of 3862728 is about 156.9030464186.

The spelling of 3862728 in words is "three million, eight hundred sixty-two thousand, seven hundred twenty-eight".