2991212 has 24 divisors (see below), whose sum is σ = 6019104. Its totient is φ = 1274112.

The previous prime is 2991203. The next prime is 2991217. The reversal of 2991212 is 2121992.

It is a happy number.

2991212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2991217) 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, 8708 + ... + 9044.

It is an arithmetic number, because the mean of its divisors is an integer number (250796).

2^2991212 is an apocalyptic number.

It is an amenable number.

2991212 is an abundant number, since it is smaller than the sum of its proper divisors (3027892).

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

2991212 is a wasteful number, since it uses less digits than its factorization.

2991212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665 (or 663 counting only the distinct ones).

The product of its digits is 648, while the sum is 26.

The square root of 2991212 is about 1729.5120699203. The cubic root of 2991212 is about 144.0839916381.

The spelling of 2991212 in words is "two million, nine hundred ninety-one thousand, two hundred twelve".