3978374 has 12 divisors (see below), whose sum is σ = 6340164. Its totient is φ = 1871904.

The previous prime is 3978349. The next prime is 3978421. The reversal of 3978374 is 4738793.

3978374 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 5 ways as a sum of consecutive naturals, for example, 2864 + ... + 4019.

It is an arithmetic number, because the mean of its divisors is an integer number (528347).

Almost surely, 2^3978374 is an apocalyptic number.

3978374 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

3978374 is a deficient number, since it is larger than the sum of its proper divisors (2361790).

3978374 is a wasteful number, since it uses less digits than its factorization.

3978374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6919 (or 6902 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 3978374 is about 1994.5861726183. The cubic root of 3978374 is about 158.4535119596.

The spelling of 3978374 in words is "three million, nine hundred seventy-eight thousand, three hundred seventy-four".