3860784 has 70 divisors (see below), whose sum is σ = 11249156. Its totient is φ = 1283040.

The previous prime is 3860777. The next prime is 3860807. The reversal of 3860784 is 4870683.

3860784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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 13 ways as a sum of consecutive naturals, for example, 11499 + ... + 11829.

Almost surely, 2^3860784 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 3860784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5624578).

3860784 is an abundant number, since it is smaller than the sum of its proper divisors (7388372).

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

3860784 is an equidigital number, since it uses as much as digits as its factorization.

3860784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357 (or 336 counting only the distinct ones).

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

The square root of 3860784 is about 1964.8877830553. The cubic root of 3860784 is about 156.8767204036.

The spelling of 3860784 in words is "three million, eight hundred sixty thousand, seven hundred eighty-four".