2189223 has 12 divisors (see below), whose sum is σ = 3175848. Its totient is φ = 1453200.

The previous prime is 2189221. The next prime is 2189227. The reversal of 2189223 is 3229812.

It is a happy number.

It is not a de Polignac number, because 2189223 - 2¹ = 2189221 is a prime.

It is a d-powerful number, because it can be written as 2 + 1 + 8 + 9⁵ + 2¹⁵ + 2²¹ + 3⁵ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2773 + ... + 3473.

It is an arithmetic number, because the mean of its divisors is an integer number (264654).

2^2189223 is an apocalyptic number.

2189223 is a deficient number, since it is larger than the sum of its proper divisors (986625).

2189223 is a wasteful number, since it uses less digits than its factorization.

2189223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1051 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 2189223 is about 1479.6023114337. The cubic root of 2189223 is about 129.8464261440.

It can be divided in two parts, 2 and 189223, that added together give a square (189225 = 435²).

The spelling of 2189223 in words is "two million, one hundred eighty-nine thousand, two hundred twenty-three".