1089680609 has 8 divisors (see below), whose sum is σ = 1147815840. Its totient is φ = 1031623776.

The previous prime is 1089680561. The next prime is 1089680611. The reversal of 1089680609 is 9060869801.

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 1089680609 - 2¹⁶ = 1089615073 is a prime.

It is a super-2 number, since 2×1089680609² = 2374807659261221762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1089680629) 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, 10109 + ... + 47765.

It is an arithmetic number, because the mean of its divisors is an integer number (143476980).

Almost surely, 2^1089680609 is an apocalyptic number.

1089680609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1089680609 is a deficient number, since it is larger than the sum of its proper divisors (58135231).

1089680609 is a wasteful number, since it uses less digits than its factorization.

1089680609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39199.

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 1089680609 is about 33010.3106468267. The cubic root of 1089680609 is about 1029.0419372284.

The spelling of 1089680609 in words is "one billion, eighty-nine million, six hundred eighty thousand, six hundred nine".