3811212 has 42 divisors (see below), whose sum is σ = 10007508. Its totient is φ = 1269432.

The previous prime is 3811207. The next prime is 3811217. The reversal of 3811212 is 2121183.

3811212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3811207) and next prime (3811217).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3811217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 2263 + ... + 3569.

It is an arithmetic number, because the mean of its divisors is an integer number (238274).

Almost surely, 2^3811212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3811212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5003754).

3811212 is an abundant number, since it is smaller than the sum of its proper divisors (6196296).

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

3811212 is a wasteful number, since it uses less digits than its factorization.

3811212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1329 (or 1312 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 3811212 is about 1952.2325681127. The cubic root of 3811212 is about 156.2024000073.

Adding to 3811212 its reverse (2121183), we get a palindrome (5932395).

The spelling of 3811212 in words is "three million, eight hundred eleven thousand, two hundred twelve".