2209673 has 6 divisors (see below), whose sum is σ = 2243466. Its totient is φ = 2176272.

The previous prime is 2209667. The next prime is 2209687. The reversal of 2209673 is 3769022.

2209673 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1951609 + 258064 = 1397^2 + 508^2 .

It is not a de Polignac number, because 2209673 - 2¹⁶ = 2144137 is a prime.

It is an Ulam 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 (2209663) 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 5 ways as a sum of consecutive naturals, for example, 16061 + ... + 16197.

It is an arithmetic number, because the mean of its divisors is an integer number (373911).

2^2209673 is an apocalyptic number.

It is an amenable number.

2209673 is a deficient number, since it is larger than the sum of its proper divisors (33793).

2209673 is an equidigital number, since it uses as much as digits as its factorization.

2209673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 2209673 is about 1486.4968886614. The cubic root of 2209673 is about 130.2494814690.

It can be divided in two parts, 2209 and 673, that added together give a palindrome (2882).

The spelling of 2209673 in words is "two million, two hundred nine thousand, six hundred seventy-three".