1089085 has 8 divisors (see below), whose sum is σ = 1326816. Its totient is φ = 858000.

The previous prime is 1089047. The next prime is 1089091. The reversal of 1089085 is 5809801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1089085 - 2⁷ = 1088957 is a prime.

It is a super-2 number, since 2×1089085² = 2372212274450, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291 + ... + 1960.

It is an arithmetic number, because the mean of its divisors is an integer number (165852).

2^1089085 is an apocalyptic number.

It is an amenable number.

1089085 is a deficient number, since it is larger than the sum of its proper divisors (237731).

1089085 is an equidigital number, since it uses as much as digits as its factorization.

1089085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3323.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 1089085 is about 1043.5923533641. The cubic root of 1089085 is about 102.8854414898.

The spelling of 1089085 in words is "one million, eighty-nine thousand, eighty-five".