1095889 has 4 divisors (see below), whose sum is σ = 1122660. Its totient is φ = 1069120.

The previous prime is 1095859. The next prime is 1095907. The reversal of 1095889 is 9885901.

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 321489 + 774400 = 567^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 1095889 - 2¹⁹ = 571601 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1095839) 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, 13324 + ... + 13405.

It is an arithmetic number, because the mean of its divisors is an integer number (280665).

2^1095889 is an apocalyptic number.

It is an amenable number.

1095889 is a deficient number, since it is larger than the sum of its proper divisors (26771).

1095889 is an equidigital number, since it uses as much as digits as its factorization.

1095889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26770.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 1095889 is about 1046.8471712719. The cubic root of 1095889 is about 103.0992539340.

The spelling of 1095889 in words is "one million, ninety-five thousand, eight hundred eighty-nine".