845911 has 6 divisors (see below), whose sum is σ = 929936. Its totient is φ = 768900.

The previous prime is 845909. The next prime is 845921. The reversal of 845911 is 119548.

It is a happy number.

It is not a de Polignac number, because 845911 - 2¹ = 845909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 845911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845921) 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, 3375 + ... + 3616.

2⁸⁴⁵⁹¹¹ is an apocalyptic number.

845911 is a deficient number, since it is larger than the sum of its proper divisors (84025).

845911 is a wasteful number, since it uses less digits than its factorization.

845911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7013 (or 7002 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 845911 is about 919.7342007341. The cubic root of 845911 is about 94.5746822459.

It can be divided in two parts, 84 and 5911, that added together give a palindrome (5995).

The spelling of 845911 in words is "eight hundred forty-five thousand, nine hundred eleven".