1088839209 has 8 divisors (see below), whose sum is σ = 1452015360. Its totient is φ = 725777936.

The previous prime is 1088839189. The next prime is 1088839217. The reversal of 1088839209 is 9029388801.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1088839209 - 2⁹ = 1088838697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1088839229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3417 + ... + 46790.

It is an arithmetic number, because the mean of its divisors is an integer number (181501920).

Almost surely, 2^1088839209 is an apocalyptic number.

It is an amenable number.

1088839209 is a deficient number, since it is larger than the sum of its proper divisors (363176151).

1088839209 is an equidigital number, since it uses as much as digits as its factorization.

1088839209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57439.

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 1088839209 is about 32997.5636827933. The cubic root of 1088839209 is about 1028.7770098032. Note that the first 3 decimals are identical.

The spelling of 1088839209 in words is "one billion, eighty-eight million, eight hundred thirty-nine thousand, two hundred nine".