605868985 has 8 divisors (see below), whose sum is σ = 727305480. Its totient is φ = 484520064.

The previous prime is 605868973. The next prime is 605869031. The reversal of 605868985 is 589868506.

605868985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 69622336 + 536246649 = 8344^2 + 23157^2 .

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-605868985 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5562 + ... + 35251.

It is an arithmetic number, because the mean of its divisors is an integer number (90913185).

Almost surely, 2^605868985 is an apocalyptic number.

It is an amenable number.

605868985 is a deficient number, since it is larger than the sum of its proper divisors (121436495).

605868985 is a wasteful number, since it uses less digits than its factorization.

605868985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43787.

The product of its (nonzero) digits is 4147200, while the sum is 55.

The square root of 605868985 is about 24614.4060460536. The cubic root of 605868985 is about 846.1737990728.

The spelling of 605868985 in words is "six hundred five million, eight hundred sixty-eight thousand, nine hundred eighty-five".