2229789 has 4 divisors (see below), whose sum is σ = 2973056. Its totient is φ = 1486524.

The previous prime is 2229779. The next prime is 2229791. The reversal of 2229789 is 9879222.

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 not a de Polignac number, because 2229789 - 2⁹ = 2229277 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2229769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 371629 + ... + 371634.

It is an arithmetic number, because the mean of its divisors is an integer number (743264).

2^2229789 is an apocalyptic number.

It is an amenable number.

2229789 is a deficient number, since it is larger than the sum of its proper divisors (743267).

2229789 is an equidigital number, since it uses as much as digits as its factorization.

2229789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743266.

The product of its digits is 36288, while the sum is 39.

The square root of 2229789 is about 1493.2478026101. The cubic root of 2229789 is about 130.6435349110.

It can be divided in two parts, 222 and 9789, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 2229789 in words is "two million, two hundred twenty-nine thousand, seven hundred eighty-nine".