3949832881 has 2 divisors, whose sum is σ = 3949832882. Its totient is φ = 3949832880.

The previous prime is 3949832863. The next prime is 3949832893. The reversal of 3949832881 is 1882389493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3647072881 + 302760000 = 60391^2 + 17400^2 .

It is a cyclic number.

It is not a de Polignac number, because 3949832881 - 2⁷ = 3949832753 is a prime.

It is a super-2 number, since 2×3949832881² = 31202359575657520322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3949832281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1974916440 + 1974916441.

It is an arithmetic number, because the mean of its divisors is an integer number (1974916441).

Almost surely, 2^3949832881 is an apocalyptic number.

It is an amenable number.

3949832881 is a deficient number, since it is larger than the sum of its proper divisors (1).

3949832881 is an equidigital number, since it uses as much as digits as its factorization.

3949832881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 55.

The square root of 3949832881 is about 62847.6959084420. The cubic root of 3949832881 is about 1580.7368353268.

The spelling of 3949832881 in words is "three billion, nine hundred forty-nine million, eight hundred thirty-two thousand, eight hundred eighty-one".