854785091 has 8 divisors (see below), whose sum is σ = 903813120. Its totient is φ = 806161032.

The previous prime is 854785081. The next prime is 854785123. The reversal of 854785091 is 190587458.

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

It is not a de Polignac number, because 854785091 - 2¹⁰ = 854784067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854785021) 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, 96635 + ... + 105108.

It is an arithmetic number, because the mean of its divisors is an integer number (112976640).

Almost surely, 2^854785091 is an apocalyptic number.

854785091 is a deficient number, since it is larger than the sum of its proper divisors (49028029).

854785091 is a wasteful number, since it uses less digits than its factorization.

854785091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201985.

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 854785091 is about 29236.7079371122. The cubic root of 854785091 is about 949.0424667770.

The spelling of 854785091 in words is "eight hundred fifty-four million, seven hundred eighty-five thousand, ninety-one".