894789091 has 8 divisors (see below), whose sum is σ = 1024857440. Its totient is φ = 765281088.

The previous prime is 894789083. The next prime is 894789131. The reversal of 894789091 is 190987498.

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 894789091 - 2³ = 894789083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (894789011) 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, 136656 + ... + 143053.

It is an arithmetic number, because the mean of its divisors is an integer number (128107180).

Almost surely, 2^894789091 is an apocalyptic number.

894789091 is a deficient number, since it is larger than the sum of its proper divisors (130068349).

894789091 is a wasteful number, since it uses less digits than its factorization.

894789091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280173.

The product of its (nonzero) digits is 1306368, while the sum is 55.

The square root of 894789091 is about 29913.0254404331. The cubic root of 894789091 is about 963.6224147956.

The spelling of 894789091 in words is "eight hundred ninety-four million, seven hundred eighty-nine thousand, ninety-one".