3975378 has 64 divisors (see below), whose sum is σ = 9400320. Its totient is φ = 1108800.

The previous prime is 3975353. The next prime is 3975379. The reversal of 3975378 is 8735793.

3975378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3975379) 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 31 ways as a sum of consecutive naturals, for example, 59301 + ... + 59367.

It is an arithmetic number, because the mean of its divisors is an integer number (146880).

Almost surely, 2^3975378 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3975378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4700160).

3975378 is an abundant number, since it is smaller than the sum of its proper divisors (5424942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3975378 is a wasteful number, since it uses less digits than its factorization.

3975378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143.

The product of its digits is 158760, while the sum is 42.

The square root of 3975378 is about 1993.8349981882. The cubic root of 3975378 is about 158.4137263638.

It can be divided in two parts, 397 and 5378, that added together give a palindrome (5775).

The spelling of 3975378 in words is "three million, nine hundred seventy-five thousand, three hundred seventy-eight".