3884778 has 48 divisors (see below), whose sum is σ = 9129120. Its totient is φ = 1189728.

The previous prime is 3884767. The next prime is 3884807. The reversal of 3884778 is 8774883.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12501 + ... + 12807.

It is an arithmetic number, because the mean of its divisors is an integer number (190190).

Almost surely, 2^3884778 is an apocalyptic number.

3884778 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3884778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4564560).

3884778 is an abundant number, since it is smaller than the sum of its proper divisors (5244342).

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

3884778 is a wasteful number, since it uses less digits than its factorization.

3884778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 368 counting only the distinct ones).

The product of its digits is 301056, while the sum is 45.

The square root of 3884778 is about 1970.9840182000. The cubic root of 3884778 is about 157.2010352864.

The spelling of 3884778 in words is "three million, eight hundred eighty-four thousand, seven hundred seventy-eight".