1089808 has 10 divisors (see below), whose sum is σ = 2111534. Its totient is φ = 544896.

The previous prime is 1089799. The next prime is 1089841. The reversal of 1089808 is 8089801.

It can be written as a sum of positive squares in only one way, i.e., 831744 + 258064 = 912^2 + 508^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34041 + ... + 34072.

2^1089808 is an apocalyptic number.

It is an amenable number.

1089808 is a deficient number, since it is larger than the sum of its proper divisors (1021726).

1089808 is an equidigital number, since it uses as much as digits as its factorization.

1089808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68121 (or 68115 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 1089808 is about 1043.9386955181. The cubic root of 1089808 is about 102.9082036310.

The spelling of 1089808 in words is "one million, eighty-nine thousand, eight hundred eight".