1089687318 has 32 divisors (see below), whose sum is σ = 2309977440. Its totient is φ = 341506560.

The previous prime is 1089687317. The next prime is 1089687323. The reversal of 1089687318 is 8137869801.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089687311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103188 + ... + 113256.

It is an arithmetic number, because the mean of its divisors is an integer number (72186795).

Almost surely, 2^1089687318 is an apocalyptic number.

1089687318 is an abundant number, since it is smaller than the sum of its proper divisors (1220290122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1089687318 is a wasteful number, since it uses less digits than its factorization.

1089687318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11152.

The product of its (nonzero) digits is 580608, while the sum is 51.

The square root of 1089687318 is about 33010.4122664350. The cubic root of 1089687318 is about 1029.0440491097.

The spelling of 1089687318 in words is "one billion, eighty-nine million, six hundred eighty-seven thousand, three hundred eighteen".