1071089 has 4 divisors (see below), whose sum is σ = 1076724. Its totient is φ = 1065456.

The previous prime is 1071067. The next prime is 1071121. The reversal of 1071089 is 9801701.

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 883600 + 187489 = 940^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 1071089 - 2¹⁶ = 1005553 is a prime.

It is a super-2 number, since 2×1071089² = 2294463291842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1071589) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2522 + ... + 2915.

It is an arithmetic number, because the mean of its divisors is an integer number (269181).

2^1071089 is an apocalyptic number.

It is an amenable number.

1071089 is a deficient number, since it is larger than the sum of its proper divisors (5635).

1071089 is an equidigital number, since it uses as much as digits as its factorization.

1071089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5634.

The product of its (nonzero) digits is 504, while the sum is 26.

The square root of 1071089 is about 1034.9342974315. The cubic root of 1071089 is about 102.3155994503.

The spelling of 1071089 in words is "one million, seventy-one thousand, eighty-nine".