850091 has 8 divisors (see below), whose sum is σ = 937200. Its totient is φ = 764640.

The previous prime is 850081. The next prime is 850093. The reversal of 850091 is 190058.

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 850091 - 2⁶ = 850027 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 850091.

It is not an unprimeable number, because it can be changed into a prime (850093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 845 + ... + 1553.

It is an arithmetic number, because the mean of its divisors is an integer number (117150).

2⁸⁵⁰⁰⁹¹ is an apocalyptic number.

850091 is a deficient number, since it is larger than the sum of its proper divisors (87109).

850091 is a wasteful number, since it uses less digits than its factorization.

850091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 850091 is about 922.0037960876. The cubic root of 850091 is about 94.7302040454.

The spelling of 850091 in words is "eight hundred fifty thousand, ninety-one".