3864528 has 60 divisors (see below), whose sum is σ = 11064768. Its totient is φ = 1258560.

The previous prime is 3864521. The next prime is 3864541. The reversal of 3864528 is 8254683.

3864528 is a `hidden beast` number, since 3 + 8 + 645 + 2 + 8 = 666.

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 = 3864492 and 3864501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3864521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6483 + ... + 7053.

Almost surely, 2^3864528 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 3864528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5532384).

3864528 is an abundant number, since it is smaller than the sum of its proper divisors (7200240).

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

3864528 is a wasteful number, since it uses less digits than its factorization.

3864528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 623 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 3864528 is about 1965.8402783543. The cubic root of 3864528 is about 156.9274144840.

The spelling of 3864528 in words is "three million, eight hundred sixty-four thousand, five hundred twenty-eight".