846891 has 6 divisors (see below), whose sum is σ = 1223300. Its totient is φ = 564588.

The previous prime is 846877. The next prime is 846913. The reversal of 846891 is 198648.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-846891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (846841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 47041 + ... + 47058.

2⁸⁴⁶⁸⁹¹ is an apocalyptic number.

846891 is a deficient number, since it is larger than the sum of its proper divisors (376409).

846891 is a wasteful number, since it uses less digits than its factorization.

846891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94105 (or 94102 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 846891 is about 920.2668091374. The cubic root of 846891 is about 94.6111901922.

The spelling of 846891 in words is "eight hundred forty-six thousand, eight hundred ninety-one".