3978382 has 8 divisors (see below), whose sum is σ = 5977296. Its totient is φ = 1985952.

The previous prime is 3978349. The next prime is 3978421. The reversal of 3978382 is 2838793.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 438 + ... + 2854.

It is an arithmetic number, because the mean of its divisors is an integer number (747162).

Almost surely, 2^3978382 is an apocalyptic number.

3978382 is a deficient number, since it is larger than the sum of its proper divisors (1998914).

3978382 is a wasteful number, since it uses less digits than its factorization.

3978382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3242.

The product of its digits is 72576, while the sum is 40.

The square root of 3978382 is about 1994.5881780458. The cubic root of 3978382 is about 158.4536181694.

The spelling of 3978382 in words is "three million, nine hundred seventy-eight thousand, three hundred eighty-two".