1090589 has 2 divisors, whose sum is σ = 1090590. Its totient is φ = 1090588.

The previous prime is 1090577. The next prime is 1090597. The reversal of 1090589 is 9850901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 624100 + 466489 = 790^2 + 683^2 .

It is a cyclic number.

It is not a de Polignac number, because 1090589 - 2⁸ = 1090333 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1090519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545294 + 545295.

It is an arithmetic number, because the mean of its divisors is an integer number (545295).

2^1090589 is an apocalyptic number.

It is an amenable number.

1090589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090589 is an equidigital number, since it uses as much as digits as its factorization.

1090589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1090589 is about 1044.3126926357. The cubic root of 1090589 is about 102.9327804725.

The spelling of 1090589 in words is "one million, ninety thousand, five hundred eighty-nine".