2938209 has 4 divisors (see below), whose sum is σ = 3917616. Its totient is φ = 1958804.

The previous prime is 2938189. The next prime is 2938213. The reversal of 2938209 is 9028392.

2938209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2938209 - 2⁷ = 2938081 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2938209.

It is not an unprimeable number, because it can be changed into a prime (2938219) 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 3 ways as a sum of consecutive naturals, for example, 489699 + ... + 489704.

It is an arithmetic number, because the mean of its divisors is an integer number (979404).

2^2938209 is an apocalyptic number.

It is an amenable number.

2938209 is a deficient number, since it is larger than the sum of its proper divisors (979407).

2938209 is an equidigital number, since it uses as much as digits as its factorization.

2938209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979406.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 2938209 is about 1714.1204741791. The cubic root of 2938209 is about 143.2278792873.

The spelling of 2938209 in words is "two million, nine hundred thirty-eight thousand, two hundred nine".