2222789 has 4 divisors (see below), whose sum is σ = 2319456. Its totient is φ = 2126124.

The previous prime is 2222783. The next prime is 2222809. The reversal of 2222789 is 9872222.

2222789 = 52² + 53² + ... + 189².

2222789 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, and also an emirpimes, since its reverse is a distinct semiprime: 9872222 = 2 ⋅4936111.

It is a cyclic number.

It is not a de Polignac number, because 2222789 - 2⁸ = 2222533 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222783) 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, 48299 + ... + 48344.

It is an arithmetic number, because the mean of its divisors is an integer number (579864).

2^2222789 is an apocalyptic number.

It is an amenable number.

2222789 is a deficient number, since it is larger than the sum of its proper divisors (96667).

2222789 is an equidigital number, since it uses as much as digits as its factorization.

2222789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96666.

The product of its digits is 8064, while the sum is 32.

The square root of 2222789 is about 1490.9020759258. The cubic root of 2222789 is about 130.5066813958.

The spelling of 2222789 in words is "two million, two hundred twenty-two thousand, seven hundred eighty-nine".