3947701608 has 48 divisors (see below), whose sum is σ = 10893432420. Its totient is φ = 1291070976.

The previous prime is 3947701607. The next prime is 3947701619. The reversal of 3947701608 is 8061077493.

3947701608 is a `hidden beast` number, since 39 + 4 + 7 + 7 + 0 + 1 + 608 = 666.

3947701608 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 3777085764 + 170615844 = 61458^2 + 13062^2 .

It is not an unprimeable number, because it can be changed into a prime (3947701607) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 513441 + ... + 521072.

Almost surely, 2^3947701608 is an apocalyptic number.

It is an amenable number.

3947701608 is an abundant number, since it is smaller than the sum of its proper divisors (6945730812).

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

3947701608 is a wasteful number, since it uses less digits than its factorization.

3947701608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034578 (or 1034571 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 3947701608 is about 62830.7377642504. The cubic root of 3947701608 is about 1580.4524698889.

The spelling of 3947701608 in words is "three billion, nine hundred forty-seven million, seven hundred one thousand, six hundred eight".