3978932904 has 48 divisors (see below), whose sum is σ = 11039120820. Its totient is φ = 1293960960.

The previous prime is 3978932857. The next prime is 3978932911. The reversal of 3978932904 is 4092398793.

3978932904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3516252804 + 462680100 = 59298^2 + 21510^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 670987 + ... + 676890.

Almost surely, 2^3978932904 is an apocalyptic number.

It is an amenable number.

3978932904 is an abundant number, since it is smaller than the sum of its proper divisors (7060187916).

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

3978932904 is a wasteful number, since it uses less digits than its factorization.

3978932904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1347930 (or 1347923 counting only the distinct ones).

The product of its (nonzero) digits is 2939328, while the sum is 54.

The square root of 3978932904 is about 63078.7833110310. The cubic root of 3978932904 is about 1584.6093175426.

The spelling of 3978932904 in words is "three billion, nine hundred seventy-eight million, nine hundred thirty-two thousand, nine hundred four".