220082609 has 4 divisors (see below), whose sum is σ = 227182080. Its totient is φ = 212983140.

The previous prime is 220082593. The next prime is 220082617. The reversal of 220082609 is 906280022.

It is a happy number.

220082609 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 220082609 - 2⁴ = 220082593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220082669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3549689 + ... + 3549750.

It is an arithmetic number, because the mean of its divisors is an integer number (56795520).

Almost surely, 2^220082609 is an apocalyptic number.

It is an amenable number.

220082609 is a deficient number, since it is larger than the sum of its proper divisors (7099471).

220082609 is an equidigital number, since it uses as much as digits as its factorization.

220082609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7099470.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 220082609 is about 14835.1814616472. The cubic root of 220082609 is about 603.7566240573.

The spelling of 220082609 in words is "two hundred twenty million, eighty-two thousand, six hundred nine".