1058209 has 4 divisors (see below), whose sum is σ = 1063060. Its totient is φ = 1053360.

The previous prime is 1058203. The next prime is 1058221. The reversal of 1058209 is 9028501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 731025 + 327184 = 855^2 + 572^2 .

It is a cyclic number.

It is not a de Polignac number, because 1058209 - 2¹¹ = 1056161 is a prime.

It is a super-2 number, since 2×1058209² = 2239612575362, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1058203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2082 + ... + 2539.

It is an arithmetic number, because the mean of its divisors is an integer number (265765).

2^1058209 is an apocalyptic number.

It is an amenable number.

1058209 is a deficient number, since it is larger than the sum of its proper divisors (4851).

1058209 is an equidigital number, since it uses as much as digits as its factorization.

1058209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4850.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1058209 is about 1028.6928598955. The cubic root of 1058209 is about 101.9038245058.

It can be divided in two parts, 1058 and 209, that multiplied together give a palindrome (221122).

The spelling of 1058209 in words is "one million, fifty-eight thousand, two hundred nine".