3908811 has 4 divisors (see below), whose sum is σ = 5211752. Its totient is φ = 2605872.

The previous prime is 3908771. The next prime is 3908831. The reversal of 3908811 is 1188093.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1188093 = 3 ⋅396031.

It is not a de Polignac number, because 3908811 - 2¹⁹ = 3384523 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3908831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651466 + ... + 651471.

It is an arithmetic number, because the mean of its divisors is an integer number (1302938).

Almost surely, 2^3908811 is an apocalyptic number.

3908811 is a deficient number, since it is larger than the sum of its proper divisors (1302941).

3908811 is a wasteful number, since it uses less digits than its factorization.

3908811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302940.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 3908811 is about 1977.0713188957. The cubic root of 3908811 is about 157.5245414013.

The spelling of 3908811 in words is "three million, nine hundred eight thousand, eight hundred eleven".