3919984 has 20 divisors (see below), whose sum is σ = 7627984. Its totient is φ = 1951488.

The previous prime is 3919973. The next prime is 3919999. The reversal of 3919984 is 4899193.

3919984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3919984.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 5029 + ... + 5755.

Almost surely, 2^3919984 is an apocalyptic number.

It is an amenable number.

3919984 is a deficient number, since it is larger than the sum of its proper divisors (3708000).

3919984 is a wasteful number, since it uses less digits than its factorization.

3919984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072 (or 1066 counting only the distinct ones).

The product of its digits is 69984, while the sum is 43.

The square root of 3919984 is about 1979.8949467080. The cubic root of 3919984 is about 157.6744887384.

It can be divided in two parts, 39 and 19984, that multiplied together give a triangular number (779376 = T₁₂₄₈).

The spelling of 3919984 in words is "three million, nine hundred nineteen thousand, nine hundred eighty-four".