1099589 has 2 divisors, whose sum is σ = 1099590. Its totient is φ = 1099588.

The previous prime is 1099573. The next prime is 1099619. The reversal of 1099589 is 9859901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 708964 + 390625 = 842^2 + 625^2 .

It is an emirp because it is prime and its reverse (9859901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1099589 - 2⁴ = 1099573 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549794 + 549795.

It is an arithmetic number, because the mean of its divisors is an integer number (549795).

2^1099589 is an apocalyptic number.

It is an amenable number.

1099589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099589 is an equidigital number, since it uses as much as digits as its factorization.

1099589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 1099589 is about 1048.6128933024. The cubic root of 1099589 is about 103.2151533645.

It can be divided in two parts, 10 and 99589, that added together give a palindrome (99599).

The spelling of 1099589 in words is "one million, ninety-nine thousand, five hundred eighty-nine".