3947352616 has 16 divisors (see below), whose sum is σ = 7404565140. Its totient is φ = 1972801920.

The previous prime is 3947352611. The next prime is 3947352623. The reversal of 3947352616 is 6162537493.

3947352616 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 3751072516 + 196280100 = 61246^2 + 14010^2 .

It is not an unprimeable number, because it can be changed into a prime (3947352611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89911 + ... + 126406.

Almost surely, 2^3947352616 is an apocalyptic number.

It is an amenable number.

3947352616 is a deficient number, since it is larger than the sum of its proper divisors (3457212524).

3947352616 is a wasteful number, since it uses less digits than its factorization.

3947352616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218604 (or 218600 counting only the distinct ones).

The product of its digits is 816480, while the sum is 46.

The square root of 3947352616 is about 62827.9604634752. The cubic root of 3947352616 is about 1580.4058958248.

The spelling of 3947352616 in words is "three billion, nine hundred forty-seven million, three hundred fifty-two thousand, six hundred sixteen".