3906647392 has 24 divisors (see below), whose sum is σ = 7706907432. Its totient is φ = 1949337600.

The previous prime is 3906647389. The next prime is 3906647441. The reversal of 3906647392 is 2937466093.

3906647392 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108609 + ... + 140032.

It is an arithmetic number, because the mean of its divisors is an integer number (321121143).

Almost surely, 2^3906647392 is an apocalyptic number.

3906647392 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3906647392 is a deficient number, since it is larger than the sum of its proper divisors (3800260040).

3906647392 is a wasteful number, since it uses less digits than its factorization.

3906647392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249142 (or 249134 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 49.

The square root of 3906647392 is about 62503.1790551489. The cubic root of 3906647392 is about 1574.9547166959.

The spelling of 3906647392 in words is "three billion, nine hundred six million, six hundred forty-seven thousand, three hundred ninety-two".