4034209 has 2 divisors, whose sum is σ = 4034210. Its totient is φ = 4034208.

The previous prime is 4034207. The next prime is 4034249. The reversal of 4034209 is 9024304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3598609 + 435600 = 1897^2 + 660^2 .

It is a cyclic number.

It is not a de Polignac number, because 4034209 - 2¹ = 4034207 is a prime.

Together with 4034207, it forms a pair of twin primes.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 4034209.

It is not a weakly prime, because it can be changed into another prime (4034203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2017104 + 2017105.

It is an arithmetic number, because the mean of its divisors is an integer number (2017105).

Almost surely, 2^4034209 is an apocalyptic number.

It is an amenable number.

4034209 is a deficient number, since it is larger than the sum of its proper divisors (1).

4034209 is an equidigital number, since it uses as much as digits as its factorization.

4034209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 4034209 is about 2008.5340425295. The cubic root of 4034209 is about 159.1913496011.

The spelling of 4034209 in words is "four million, thirty-four thousand, two hundred nine".