3948055209 has 32 divisors (see below), whose sum is σ = 6689504000. Its totient is φ = 2254355712.

The previous prime is 3948055207. The next prime is 3948055217. The reversal of 3948055209 is 9025508493.

3948055209 is a `hidden beast` number, since 3 + 94 + 8 + 0 + 552 + 0 + 9 = 666.

3948055209 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3948055209 - 2¹ = 3948055207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3948055207) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 274407 + ... + 288435.

It is an arithmetic number, because the mean of its divisors is an integer number (209047000).

Almost surely, 2^3948055209 is an apocalyptic number.

It is an amenable number.

3948055209 is a deficient number, since it is larger than the sum of its proper divisors (2741448791).

3948055209 is a wasteful number, since it uses less digits than its factorization.

3948055209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15534 (or 15528 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 3948055209 is about 62833.5516185421. The cubic root of 3948055209 is about 1580.4996562389.

The spelling of 3948055209 in words is "three billion, nine hundred forty-eight million, fifty-five thousand, two hundred nine".