3971384 has 16 divisors (see below), whose sum is σ = 7537320. Its totient is φ = 1961440.

The previous prime is 3971377. The next prime is 3971393. The reversal of 3971384 is 4831793.

3971384 = T₃₉ + T₄₀ + ... + T₂₈₇.

3971384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2327 + ... + 3654.

Almost surely, 2^3971384 is an apocalyptic number.

It is an amenable number.

3971384 is a deficient number, since it is larger than the sum of its proper divisors (3565936).

3971384 is a wasteful number, since it uses less digits than its factorization.

3971384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6070 (or 6066 counting only the distinct ones).

The product of its digits is 18144, while the sum is 35.

The square root of 3971384 is about 1992.8331590979. The cubic root of 3971384 is about 158.3606566573.

The spelling of 3971384 in words is "three million, nine hundred seventy-one thousand, three hundred eighty-four".