1089853 has 4 divisors (see below), whose sum is σ = 1153980. Its totient is φ = 1025728.

The previous prime is 1089841. The next prime is 1089863. The reversal of 1089853 is 3589801.

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 1004004 + 85849 = 1002^2 + 293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1089853 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 (1089863) 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, 32038 + ... + 32071.

It is an arithmetic number, because the mean of its divisors is an integer number (288495).

2^1089853 is an apocalyptic number.

It is an amenable number.

1089853 is a deficient number, since it is larger than the sum of its proper divisors (64127).

1089853 is an equidigital number, since it uses as much as digits as its factorization.

1089853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64126.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 1089853 is about 1043.9602482853. The cubic root of 1089853 is about 102.9096200289.

The spelling of 1089853 in words is "one million, eighty-nine thousand, eight hundred fifty-three".