2189373 has 4 divisors (see below), whose sum is σ = 2919168. Its totient is φ = 1459580.

The previous prime is 2189371. The next prime is 2189381. The reversal of 2189373 is 3739812.

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 2189373 - 2¹ = 2189371 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2189371) 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, 364893 + ... + 364898.

It is an arithmetic number, because the mean of its divisors is an integer number (729792).

2^2189373 is an apocalyptic number.

It is an amenable number.

2189373 is a deficient number, since it is larger than the sum of its proper divisors (729795).

2189373 is an equidigital number, since it uses as much as digits as its factorization.

2189373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729794.

The product of its digits is 9072, while the sum is 33.

The square root of 2189373 is about 1479.6529998618. The cubic root of 2189373 is about 129.8493916587.

It can be divided in two parts, 218 and 9373, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 2189373 in words is "two million, one hundred eighty-nine thousand, three hundred seventy-three".