3825978 has 32 divisors (see below), whose sum is σ = 8316672. Its totient is φ = 1166400.

The previous prime is 3825953. The next prime is 3825979. The reversal of 3825978 is 8795283.

3825978 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 not an unprimeable number, because it can be changed into a prime (3825979) 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 15 ways as a sum of consecutive naturals, for example, 13983 + ... + 14253.

It is an arithmetic number, because the mean of its divisors is an integer number (259896).

Almost surely, 2^3825978 is an apocalyptic number.

3825978 is an abundant number, since it is smaller than the sum of its proper divisors (4490694).

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

3825978 is a wasteful number, since it uses less digits than its factorization.

3825978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470.

The product of its digits is 120960, while the sum is 42.

The square root of 3825978 is about 1956.0107361669. The cubic root of 3825978 is about 156.4038680545.

Subtracting from 3825978 its sum of digits (42), we obtain a square (3825936 = 1956²).

The spelling of 3825978 in words is "three million, eight hundred twenty-five thousand, nine hundred seventy-eight".