2005317089 has 8 divisors (see below), whose sum is σ = 2010147840. Its totient is φ = 2000494000.

The previous prime is 2005317079. The next prime is 2005317091. The reversal of 2005317089 is 9807135002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2005317089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2005317079) 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, 1275674 + ... + 1277244.

It is an arithmetic number, because the mean of its divisors is an integer number (251268480).

Almost surely, 2^2005317089 is an apocalyptic number.

It is an amenable number.

2005317089 is a deficient number, since it is larger than the sum of its proper divisors (4830751).

2005317089 is a wasteful number, since it uses less digits than its factorization.

2005317089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3831.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 2005317089 is about 44780.7669541289. The cubic root of 2005317089 is about 1261.0365806413.

The spelling of 2005317089 in words is "two billion, five million, three hundred seventeen thousand, eighty-nine".