2212989 has 4 divisors (see below), whose sum is σ = 2950656. Its totient is φ = 1475324.

The previous prime is 2212979. The next prime is 2213033. The reversal of 2212989 is 9892122.

It is a happy number.

2212989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2212989 - 2⁹ = 2212477 is a prime.

It is a D-number.

It is a Curzon number.

2212989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212939) 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 3 ways as a sum of consecutive naturals, for example, 368829 + ... + 368834.

It is an arithmetic number, because the mean of its divisors is an integer number (737664).

2^2212989 is an apocalyptic number.

It is an amenable number.

2212989 is a deficient number, since it is larger than the sum of its proper divisors (737667).

2212989 is an equidigital number, since it uses as much as digits as its factorization.

2212989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737666.

The product of its digits is 5184, while the sum is 33.

The square root of 2212989 is about 1487.6118445347. The cubic root of 2212989 is about 130.3146029312.

The spelling of 2212989 in words is "two million, two hundred twelve thousand, nine hundred eighty-nine".