1038209 has 2 divisors, whose sum is σ = 1038210. Its totient is φ = 1038208.

The previous prime is 1038203. The next prime is 1038211. The reversal of 1038209 is 9028301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595984 + 442225 = 772^2 + 665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1038209 is a prime.

It is a Sophie Germain prime.

Together with 1038211, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1038203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519104 + 519105.

It is an arithmetic number, because the mean of its divisors is an integer number (519105).

2^1038209 is an apocalyptic number.

It is an amenable number.

1038209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1038209 is an equidigital number, since it uses as much as digits as its factorization.

1038209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1038209 is about 1018.9254143459. The cubic root of 1038209 is about 101.2577477178.

The spelling of 1038209 in words is "one million, thirty-eight thousand, two hundred nine".