1088589 has 4 divisors (see below), whose sum is σ = 1451456. Its totient is φ = 725724.

The previous prime is 1088579. The next prime is 1088603. The reversal of 1088589 is 9858801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9858801 = 3 ⋅3286267.

It is not a de Polignac number, because 1088589 - 2¹² = 1084493 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1088519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181429 + ... + 181434.

It is an arithmetic number, because the mean of its divisors is an integer number (362864).

2^1088589 is an apocalyptic number.

It is an amenable number.

1088589 is a deficient number, since it is larger than the sum of its proper divisors (362867).

1088589 is an equidigital number, since it uses as much as digits as its factorization.

1088589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362866.

The product of its (nonzero) digits is 23040, while the sum is 39.

The square root of 1088589 is about 1043.3546856175. The cubic root of 1088589 is about 102.8698201416.

Subtracting from 1088589 its sum of digits (39), we obtain a triangular number (1088550 = T₁₄₇₅).

The spelling of 1088589 in words is "one million, eighty-eight thousand, five hundred eighty-nine".