3978344 has 16 divisors (see below), whose sum is σ = 7481700. Its totient is φ = 1983232.

The previous prime is 3978329. The next prime is 3978349. The reversal of 3978344 is 4438793.

3978344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3276100 + 702244 = 1810^2 + 838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3978298 and 3978307.

It is not an unprimeable number, because it can be changed into a prime (3978349) by changing a digit.

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, 3584 + ... + 4560.

Almost surely, 2^3978344 is an apocalyptic number.

It is an amenable number.

3978344 is a deficient number, since it is larger than the sum of its proper divisors (3503356).

3978344 is a wasteful number, since it uses less digits than its factorization.

3978344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492 (or 1488 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 3978344 is about 1994.5786522471. The cubic root of 3978344 is about 158.4531136715.

The spelling of 3978344 in words is "three million, nine hundred seventy-eight thousand, three hundred forty-four".