3978038125 has 40 divisors (see below), whose sum is σ = 5087871360. Its totient is φ = 3108336000.

The previous prime is 3978038107. The next prime is 3978038137. The reversal of 3978038125 is 5218308793.

It is not a de Polignac number, because 3978038125 - 2¹³ = 3978029933 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8591644 + ... + 8592106.

It is an arithmetic number, because the mean of its divisors is an integer number (127196784).

Almost surely, 2^3978038125 is an apocalyptic number.

It is an amenable number.

3978038125 is a deficient number, since it is larger than the sum of its proper divisors (1109833235).

3978038125 is an equidigital number, since it uses as much as digits as its factorization.

3978038125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 760 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 46.

The square root of 3978038125 is about 63071.6903610487. The cubic root of 3978038125 is about 1584.4905267788.

The spelling of 3978038125 in words is "three billion, nine hundred seventy-eight million, thirty-eight thousand, one hundred twenty-five".