3906613872 has 120 divisors (see below), whose sum is σ = 13230019296. Its totient is φ = 1050513408.

The previous prime is 3906613861. The next prime is 3906613903. The reversal of 3906613872 is 2783166093.

3906613872 is a `hidden beast` number, since 390 + 66 + 138 + 72 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96853 + ... + 131124.

Almost surely, 2^3906613872 is an apocalyptic number.

It is an amenable number.

3906613872 is an abundant number, since it is smaller than the sum of its proper divisors (9323405424).

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

3906613872 is a wasteful number, since it uses less digits than its factorization.

3906613872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228015 (or 228006 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 3906613872 is about 62502.9109082129. The cubic root of 3906613872 is about 1574.9502121828.

The spelling of 3906613872 in words is "three billion, nine hundred six million, six hundred thirteen thousand, eight hundred seventy-two".