4859209 has 2 divisors, whose sum is σ = 4859210. Its totient is φ = 4859208.

The previous prime is 4859207. The next prime is 4859227. The reversal of 4859209 is 9029584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4826809 + 32400 = 2197^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 4859209 - 2¹ = 4859207 is a prime.

It is a super-2 number, since 2×4859209² = 47223824211362, which contains 22 as substring.

Together with 4859207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4859201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2429604 + 2429605.

It is an arithmetic number, because the mean of its divisors is an integer number (2429605).

Almost surely, 2^4859209 is an apocalyptic number.

It is an amenable number.

4859209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4859209 is an equidigital number, since it uses as much as digits as its factorization.

4859209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 4859209 is about 2204.3613587613. The cubic root of 4859209 is about 169.3772950765.

The spelling of 4859209 in words is "four million, eight hundred fifty-nine thousand, two hundred nine".