3938955211 has 4 divisors (see below), whose sum is σ = 3951785992. Its totient is φ = 3926124432.

The previous prime is 3938955203. The next prime is 3938955217. The reversal of 3938955211 is 1125598393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1125598393 = 313 ⋅3596161.

It is a cyclic number.

It is not a de Polignac number, because 3938955211 - 2³ = 3938955203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3938955217) 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, 6414930 + ... + 6415543.

It is an arithmetic number, because the mean of its divisors is an integer number (987946498).

Almost surely, 2^3938955211 is an apocalyptic number.

3938955211 is a deficient number, since it is larger than the sum of its proper divisors (12830781).

3938955211 is a wasteful number, since it uses less digits than its factorization.

3938955211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12830780.

The product of its digits is 291600, while the sum is 46.

The square root of 3938955211 is about 62761.0963177031. The cubic root of 3938955211 is about 1579.2844074323.

The spelling of 3938955211 in words is "three billion, nine hundred thirty-eight million, nine hundred fifty-five thousand, two hundred eleven".