1089335679 has 4 divisors (see below), whose sum is σ = 1452447576. Its totient is φ = 726223784.

The previous prime is 1089335669. The next prime is 1089335693. The reversal of 1089335679 is 9765339801.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1089335679 - 2²⁷ = 955117951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089335669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181555944 + ... + 181555949.

It is an arithmetic number, because the mean of its divisors is an integer number (363111894).

Almost surely, 2^1089335679 is an apocalyptic number.

1089335679 is a deficient number, since it is larger than the sum of its proper divisors (363111897).

1089335679 is an equidigital number, since it uses as much as digits as its factorization.

1089335679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363111896.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The square root of 1089335679 is about 33005.0856535777. The cubic root of 1089335679 is about 1028.9333473380.

The spelling of 1089335679 in words is "one billion, eighty-nine million, three hundred thirty-five thousand, six hundred seventy-nine".