3117212 has 24 divisors (see below), whose sum is σ = 6281856. Its totient is φ = 1325808.

The previous prime is 3117211. The next prime is 3117217. The reversal of 3117212 is 2127113.

3117212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3117211) 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 7 ways as a sum of consecutive naturals, for example, 4223 + ... + 4905.

It is an arithmetic number, because the mean of its divisors is an integer number (261744).

Almost surely, 2^3117212 is an apocalyptic number.

It is an amenable number.

3117212 is an abundant number, since it is smaller than the sum of its proper divisors (3164644).

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

3117212 is a wasteful number, since it uses less digits than its factorization.

3117212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 855 counting only the distinct ones).

The product of its digits is 84, while the sum is 17.

The square root of 3117212 is about 1765.5627997893. The cubic root of 3117212 is about 146.0793338773.

Subtracting from 3117212 its reverse (2127113), we obtain a palindrome (990099).

The spelling of 3117212 in words is "three million, one hundred seventeen thousand, two hundred twelve".