3211912 has 64 divisors (see below), whose sum is σ = 7387200. Its totient is φ = 1290240.

The previous prime is 3211909. The next prime is 3211919. The reversal of 3211912 is 2191123.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 3211912.

It is not an unprimeable number, because it can be changed into a prime (3211919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28368 + ... + 28480.

It is an arithmetic number, because the mean of its divisors is an integer number (115425).

Almost surely, 2^3211912 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 3211912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3693600).

3211912 is an abundant number, since it is smaller than the sum of its proper divisors (4175288).

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

3211912 is a wasteful number, since it uses less digits than its factorization.

3211912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 162 counting only the distinct ones).

The product of its digits is 108, while the sum is 19.

The square root of 3211912 is about 1792.1807944513. The cubic root of 3211912 is about 147.5438842897.

It can be divided in two parts, 32119 and 12, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 3211912 in words is "three million, two hundred eleven thousand, nine hundred twelve".