891058089 has 8 divisors (see below), whose sum is σ = 1229045760. Its totient is φ = 573554576.

The previous prime is 891058081. The next prime is 891058109. The reversal of 891058089 is 980850198.

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

It is not a de Polignac number, because 891058089 - 2³ = 891058081 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (891058081) 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, 5120937 + ... + 5121110.

It is an arithmetic number, because the mean of its divisors is an integer number (153630720).

Almost surely, 2^891058089 is an apocalyptic number.

It is an amenable number.

891058089 is a deficient number, since it is larger than the sum of its proper divisors (337987671).

891058089 is a wasteful number, since it uses less digits than its factorization.

891058089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10242079.

The product of its (nonzero) digits is 207360, while the sum is 48.

The square root of 891058089 is about 29850.5961247008. The cubic root of 891058089 is about 962.2812101562.

The spelling of 891058089 in words is "eight hundred ninety-one million, fifty-eight thousand, eighty-nine".