1087589 has 2 divisors, whose sum is σ = 1087590. Its totient is φ = 1087588.

The previous prime is 1087561. The next prime is 1087591. The reversal of 1087589 is 9857801.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 940900 + 146689 = 970^2 + 383^2 .

It is an emirp because it is prime and its reverse (9857801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1087589 - 2¹⁶ = 1022053 is a prime.

Together with 1087591, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1087519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543794 + 543795.

It is an arithmetic number, because the mean of its divisors is an integer number (543795).

2^1087589 is an apocalyptic number.

It is an amenable number.

1087589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087589 is an equidigital number, since it uses as much as digits as its factorization.

1087589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 38.

The square root of 1087589 is about 1042.8753520915. The cubic root of 1087589 is about 102.8383110549.

The spelling of 1087589 in words is "one million, eighty-seven thousand, five hundred eighty-nine".