4220009 has 4 divisors (see below), whose sum is σ = 4227216. Its totient is φ = 4212804.

The previous prime is 4219991. The next prime is 4220039. The reversal of 4220009 is 9000224.

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 4220009 - 2⁸ = 4219753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4220039) 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, 2639 + ... + 3924.

It is an arithmetic number, because the mean of its divisors is an integer number (1056804).

Almost surely, 2^4220009 is an apocalyptic number.

It is an amenable number.

4220009 is a deficient number, since it is larger than the sum of its proper divisors (7207).

4220009 is an equidigital number, since it uses as much as digits as its factorization.

4220009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7206.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 4220009 is about 2054.2660489820. The cubic root of 4220009 is about 161.5986738324.

The spelling of 4220009 in words is "four million, two hundred twenty thousand, nine".