1088709289 has 4 divisors (see below), whose sum is σ = 1091552256. Its totient is φ = 1085866324.

The previous prime is 1088709263. The next prime is 1088709313. The reversal of 1088709289 is 9829078801.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1088709289 - 2¹⁹ = 1088185001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1088709689) 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, 1420909 + ... + 1421674.

It is an arithmetic number, because the mean of its divisors is an integer number (272888064).

Almost surely, 2^1088709289 is an apocalyptic number.

It is an amenable number.

1088709289 is a deficient number, since it is larger than the sum of its proper divisors (2842967).

1088709289 is an equidigital number, since it uses as much as digits as its factorization.

1088709289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2842966.

The product of its (nonzero) digits is 580608, while the sum is 52.

The square root of 1088709289 is about 32995.5949938776. The cubic root of 1088709289 is about 1028.7360903775.

The spelling of 1088709289 in words is "one billion, eighty-eight million, seven hundred nine thousand, two hundred eighty-nine".