3911886 has 48 divisors (see below), whose sum is σ = 9659520. Its totient is φ = 1132560.

The previous prime is 3911881. The next prime is 3911911. The reversal of 3911886 is 6881193.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3911886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3911881) 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 23 ways as a sum of consecutive naturals, for example, 4125 + ... + 4983.

It is an arithmetic number, because the mean of its divisors is an integer number (201240).

Almost surely, 2^3911886 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3911886, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4829760).

3911886 is an abundant number, since it is smaller than the sum of its proper divisors (5747634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3911886 is a wasteful number, since it uses less digits than its factorization.

3911886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 898 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 3911886 is about 1977.8488314328. The cubic root of 3911886 is about 157.5658379320.

It can be divided in two parts, 39118 and 86, that added together give a square (39204 = 198²).

The spelling of 3911886 in words is "three million, nine hundred eleven thousand, eight hundred eighty-six".