4820209 has 4 divisors (see below), whose sum is σ = 4828480. Its totient is φ = 4811940.

The previous prime is 4820203. The next prime is 4820219. The reversal of 4820209 is 9020284.

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 4820209 - 2³ = 4820201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4820201) 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, 3189 + ... + 4450.

It is an arithmetic number, because the mean of its divisors is an integer number (1207120).

Almost surely, 2^4820209 is an apocalyptic number.

It is an amenable number.

4820209 is a deficient number, since it is larger than the sum of its proper divisors (8271).

4820209 is an equidigital number, since it uses as much as digits as its factorization.

4820209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8270.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 4820209 is about 2195.4974379397. The cubic root of 4820209 is about 168.9229367496.

The spelling of 4820209 in words is "four million, eight hundred twenty thousand, two hundred nine".