2209959 has 18 divisors (see below), whose sum is σ = 3332576. Its totient is φ = 1409760.

The previous prime is 2209957. The next prime is 2209967. The reversal of 2209959 is 9599022.

2209959 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2209959 - 2¹ = 2209957 is a prime.

It is a Duffinian number.

2209959 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2209957) 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 17 ways as a sum of consecutive naturals, for example, 24787 + ... + 24875.

2^2209959 is an apocalyptic number.

2209959 is a deficient number, since it is larger than the sum of its proper divisors (1122617).

2209959 is an equidigital number, since it uses as much as digits as its factorization.

2209959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215 (or 123 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 36.

The square root of 2209959 is about 1486.5930848756. The cubic root of 2209959 is about 130.2551006632.

The spelling of 2209959 in words is "two million, two hundred nine thousand, nine hundred fifty-nine".