850491 has 12 divisors (see below), whose sum is σ = 1252368. Its totient is φ = 555984.

The previous prime is 850481. The next prime is 850529. The reversal of 850491 is 194058.

It is not a de Polignac number, because 850491 - 2⁶ = 850427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (850481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 415 + ... + 1368.

It is an arithmetic number, because the mean of its divisors is an integer number (104364).

2⁸⁵⁰⁴⁹¹ is an apocalyptic number.

850491 is a deficient number, since it is larger than the sum of its proper divisors (401877).

850491 is a wasteful number, since it uses less digits than its factorization.

850491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1842 (or 1839 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 850491 is about 922.2206894231. The cubic root of 850491 is about 94.7450597647.

The spelling of 850491 in words is "eight hundred fifty thousand, four hundred ninety-one".