1089071 has 4 divisors (see below), whose sum is σ = 1153152. Its totient is φ = 1024992.

The previous prime is 1089047. The next prime is 1089091. The reversal of 1089071 is 1709801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1709801 = 127 ⋅13463.

It is a cyclic number.

It is not a de Polignac number, because 1089071 - 2¹⁸ = 826927 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1089071.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089091) 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, 32015 + ... + 32048.

It is an arithmetic number, because the mean of its divisors is an integer number (288288).

2^1089071 is an apocalyptic number.

1089071 is a deficient number, since it is larger than the sum of its proper divisors (64081).

1089071 is an equidigital number, since it uses as much as digits as its factorization.

1089071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64080.

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

The square root of 1089071 is about 1043.5856457426. The cubic root of 1089071 is about 102.8850006297.

The spelling of 1089071 in words is "one million, eighty-nine thousand, seventy-one".