2209079 has 2 divisors, whose sum is σ = 2209080. Its totient is φ = 2209078.

The previous prime is 2209063. The next prime is 2209117. The reversal of 2209079 is 9709022.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2209079 - 2⁴ = 2209063 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2209049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104539 + 1104540.

It is an arithmetic number, because the mean of its divisors is an integer number (1104540).

2^2209079 is an apocalyptic number.

2209079 is a deficient number, since it is larger than the sum of its proper divisors (1).

2209079 is an equidigital number, since it uses as much as digits as its factorization.

2209079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 2209079 is about 1486.2970766304. The cubic root of 2209079 is about 130.2378092856.

The spelling of 2209079 in words is "two million, two hundred nine thousand, seventy-nine".