3986195378 has 16 divisors (see below), whose sum is σ = 6586197696. Its totient is φ = 1794314640.

The previous prime is 3986195263. The next prime is 3986195431. The reversal of 3986195378 is 8735916893.

3986195378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877301 + ... + 881832.

It is an arithmetic number, because the mean of its divisors is an integer number (411637356).

Almost surely, 2^3986195378 is an apocalyptic number.

3986195378 is a deficient number, since it is larger than the sum of its proper divisors (2600002318).

3986195378 is a wasteful number, since it uses less digits than its factorization.

3986195378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1759249.

The product of its digits is 9797760, while the sum is 59.

The square root of 3986195378 is about 63136.3237605738. The cubic root of 3986195378 is about 1585.5728245630.

The spelling of 3986195378 in words is "three billion, nine hundred eighty-six million, one hundred ninety-five thousand, three hundred seventy-eight".