845049289 has 8 divisors (see below), whose sum is σ = 968691008. Its totient is φ = 722137680.

The previous prime is 845049281. The next prime is 845049307. The reversal of 845049289 is 982940548.

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 845049289 - 2³ = 845049281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (845049281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180042 + ... + 184675.

It is an arithmetic number, because the mean of its divisors is an integer number (121086376).

Almost surely, 2^845049289 is an apocalyptic number.

It is an amenable number.

845049289 is a deficient number, since it is larger than the sum of its proper divisors (123641719).

845049289 is a wasteful number, since it uses less digits than its factorization.

845049289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365055.

The product of its (nonzero) digits is 829440, while the sum is 49.

The square root of 845049289 is about 29069.7314917080. The cubic root of 845049289 is about 945.4255761640.

The spelling of 845049289 in words is "eight hundred forty-five million, forty-nine thousand, two hundred eighty-nine".