2209633 has 6 divisors (see below), whose sum is σ = 2310434. Its totient is φ = 2113056.

The previous prime is 2209631. The next prime is 2209639. The reversal of 2209633 is 3369022.

2209633 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., 2166784 + 42849 = 1472^2 + 207^2 .

It is not a de Polignac number, because 2209633 - 2¹ = 2209631 is a prime.

It is a Duffinian number.

2209633 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2209598 and 2209607.

It is not an unprimeable number, because it can be changed into a prime (2209631) 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, 1560 + ... + 2617.

2^2209633 is an apocalyptic number.

2209633 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2209633 is a deficient number, since it is larger than the sum of its proper divisors (100801).

2209633 is an equidigital number, since it uses as much as digits as its factorization.

2209633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4223 (or 4200 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 2209633 is about 1486.4834341492. The cubic root of 2209633 is about 130.2486955291.

The spelling of 2209633 in words is "two million, two hundred nine thousand, six hundred thirty-three".