3906044881 has 4 divisors (see below), whose sum is σ = 3906291312. Its totient is φ = 3905798452.

The previous prime is 3906044869. The next prime is 3906044917. The reversal of 3906044881 is 1884406093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1884406093 = 137 ⋅13754789.

It is a cyclic number.

It is not a de Polignac number, because 3906044881 - 2²⁷ = 3771827153 is a prime.

It is a super-2 number, since 2×3906044881² = 30514373224772608322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3906044281) 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, 97675 + ... + 131728.

It is an arithmetic number, because the mean of its divisors is an integer number (976572828).

Almost surely, 2^3906044881 is an apocalyptic number.

It is an amenable number.

3906044881 is a deficient number, since it is larger than the sum of its proper divisors (246431).

3906044881 is a wasteful number, since it uses less digits than its factorization.

3906044881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246430.

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 3906044881 is about 62498.3590264576. The cubic root of 3906044881 is about 1574.8737456198.

The spelling of 3906044881 in words is "three billion, nine hundred six million, forty-four thousand, eight hundred eighty-one".